I'd be curious to know how you make your distinction between mainstream and hardcore gamers. Castlevania isn't exactly mainstream IMO --like I said before it has a niche audience...
I wondering about that in your case as well!

You made it sound like the majority of hardcore gamers own a 360, when there really is no proof. Hardcore gamers blend into the Mainstream crowd. You can't just base it on 360 western sales. And while Castlevania may not be exactly mainstream, I think it would have to be a bit more than niche to get this far.
I think we're confusing the figures here. I'm speaking in terms of percentages, while you're speaking more in terms of populations. Obviously there's an under-served population of Castlevania fans that own PS3s and not 360s --we're the ones that got jipped. Porting it over to PSN is dirt cheap especially with digital distribution. Any additional sales are gravy --even at $10.00 a sale.
I don't think you take profits as seriously as companies do because you are primarily thinking about paying less for more. Most wouldn't overdo it with practically giving away their product for peanuts, companies have to make money any chance they get. Digital Distribution is cheap than disk manufacturing, packaging and distribution, but I don't think selling products on PSN or XBLA is cheap at all. You really think MS or Sony would put up products for other companies to make money off of, without charging a multi-digit fee? Well excuse me for not researching this, feel free to do this homework about how much it costs for a company to sell games on PSN/XBLA to support your argument. And also check if markets like PSN increase the price to put up products based on how long a company will pay to continue having it available on the market (for example, there might be a 1 year deal that costs a certain amount. And that fee builds up the more months/time a company wants their product to be available on PSN.)
But really, you're making it sound like an extra 5-40 bucks will break your wallet.

So far the only officially announced addition to the game is the local co-op. If they pimp out the game with some real extra content --say the Trevor, Sypha, Grant example, maybe Morris & Lecarde, more stages etc --certainly that's worth a second look. But as of this moment, it's too little too late to pay a premium unless we're guaranteed the full package Day 1. BTW--if indeed Microsoft paid off Konami for exclusivity, that diminishes your profit argument even further...
It isn't too little too late.

You are talking like you are a veteran of a 360 veteran who feels entitled to some super sale for almost nothing.
And whatever MS paid for time exclusivity has nothing to do with the business Konami is doing with the PSN version.
With your attitude, one would also expect every game that's ported a year later to cost less and give more. That is ridiculous and not likely to happen at least in most cases. You seem to be ranting over a $15 price, and DLC that only adds up to $30-40 if you choose to buy it all. Konami gives a little extra for free, and you demand more to chew on at their expense?

And technically, you are already saving money, since you can scratch off about $10 from Julius, Yoko and Chapter 7 DLC.
I have a feeling HoD will be a breeze, and we'll get stuck waiting impatiently for DLC content
Well if people take their time instead of Survival speed grinding, they won't be thinking about upcoming DLC so early.

Well Konami surprised us with that local co-op addition and 2 free DLC characters, maybe there is a DLC bundle planned or something.
But anyways, PSN version is already starting with more stuff than the XBLA version, there is much to enjoy and appreciate in the meantime!
I mean really, XBLA didn't get Chapter 7 until like September. And Julius and Yoko didn't appear until November!
With 7 characters to master instead of 5, And 7 Chapters to learn instead of 6, there will be a good amount of content as people wait for the DLC, if the other DLC isn't up the same month.
Let's be honest here. The "DLC" in HoD are rehashed sprites, some over a decade old. They have at most a handful of new frames. I don't see how that can be compared to DLC that is genuinely new and freshly created (ie: SSFIV or MvC3). I personally don't mind paying for the DLC, especially with the amount of hours I've sunk into HoD, but at the end of the day, the guys at Konami took some old ass sprites, slapped them into an already completed engine, and charged way more than they are worth. Let's not kid ourselves otherwise.
Um you extremely underrate the value of the DLC! Especially the characters DLC.
Playable Characters DLC >>>>>>>>>>>>>>> costumes DLC.
And instead of selling Yun, Yang, and the new versions of Ryu and Akuma as individual characters DLC, Capcom expect people to buy the AE version. And why extra versions of Ryu and Akuma? They could have added more actually 'different' characters that weren't in SFIV series. That would be like if Castlevania HD wasted a slot with "Evil Soma" or something like that. Extra version of the exact same person are cheap character additions. It doesn't matter if they have new graphics or moves.
Things like whip using Belmonts are an exception because they at least have their own identity and flavor.
Yes MVC3 added, what, 2 DLC characters. Yes they are freshly created (although really really bad 3-D art style. Even SFIV 3-D art was better.) , but it's the ruined sci-fi RE5 version of Jill, and Shuma Gorath which was never popular even in MVC2. Most people don't even know where they appeared in Marvel comics. And MVC3 is just a fighting game (not much variety or freedom in gameplay besides defeating opponent in small space.) and one of the worst ones Capcom has ever made. And Capcom is one of the least dedicated with added playable characters and new locations DLC. Instead of making the Mercenaries characters playable in the RE5 story campaign, they are restricted to Mercenaries mode only.

Same with only Leon usable in RE4 story, when Krauser, Ada and the others from Mercenaries were made playable by mods who don't work for Capcom. Story smory. The best games don't place story above gameplay variety. At least Capcom somewhat got that right in Lost Planet 2.
And Castlevania games already showed examples of allowing more playable characters in the adventure despite contradicting the story, it does add more variety and replay value.
Whereas Castlevania HD added 6 playable upgradable characters DLC, 5 Chapters DLC, music packs with multiple tracks each (even better with the fact you can customize which track plays for stage and boss.)
You don't see most companies adding multiple stages DLC, multiple playable characters DLC. At most they would just add costumes or some weapon.
Rant all you want about the graphics, but the classic sprites are a work of art that fits nicely in 2-D Castlevania. I'm glad they didn't remake the sprites otherwise their designs would end up looking like some cheesy Flash game like Super Street Fighter II HD Remix and Double Dragon. Although UDON worked hard on the sprites, they still don't compare to the classic sprites essence. And while ASW's Hard Corps Uprising looked good, the art still lacked the gritty and more complex style of the classics graphics/art, much of the Contra atmosphere and spirit was missing due to the new sprites and new graphics art style.