I would have bought more games for it. As it stands, I don't have all that many, so I'm asking for recommendations. Hopefully the carts won't be too expensive to track down.
By the way, I really do wish the original model had a backlight. Maybe I can somehow mod the thing, even though I'm not tech-savvy... I like the wider design more than the cramping SP model. (The fact that the SP doesn't have a headphone jack is also a downer.) Only thing that sucked was getting the screen all full of thumb smudges since the screen is too close to the buttons.
These are the games I own, by the way:
Castlevania: Aria of Sorrow
Castlevania: Circle of the Moon
Castlevania: Harmony of Dissonance
Donkey Kong Country 3 (only bought it to hear the new myoozaks by D. Wise)
Gunstar Super Heroes
Kirby: Nightmare in Dream Land
Mario & Luigi: Superstar Saga
Mario Kart: Super Circuit
Metroid Fusion
Metroid: Zero Mission
Sonic Advance
These are all awesome with perhaps the exception of Sonic Advance, which I remember not being all too fond of.
I already know I want Astro Boy: Omega Factor. Played a bit of that and thought it was awesome. Been meaning to check out the Mega Man Zero games... They good? And also, somehow a second Kirby game had passed me by, Kirby & the Amazing Mirror; I like Flagship's Kirby: Squeak Squad, so I imagine I'd like their GBA game.
Also, heck, let's extend this into GB and GBC games as well. I barely have ANY of those. I think the only Color game I own is Bionic Commando: Elite Forces, which is tits. I don't even own the first two GB Castlevania games.