I've been buying from LRG for years, so if anybody has never bought from them before and wants one of the CEs or the standard Vita edition, I recommend doing all of these things in advance: creating an account, adding your address, logging in to your LRG account, logging in to your PayPal account if that's how you're paying. Once you have all that set before sales open up, get on the page of whatever you want to buy and keeping refreshing with F5 until you can add it to cart. Don't spend a lot of time going through checkout because adding something to your cart doesn't reserve it for you. Items can sell out while you're trying to get through checkout.
I'm aiming for a Vita CE myself. Good luck, everybody.