This generation I bought at almost full price Uncharted 3, because I ordered it from Zavvi.

Last game I bought on day 1 is Final Fantasy XII, bad Final Fantasy, but awesome game.

too many so I'll just go by this year

Uncharted: Golden Abyss
Unit 13
Ninja Gaiden Sigma plaus
Tales of Graces f
Naruto Ultimate Ninja Storm Generations
Tales of the Abyss 3DS
Resident Evil Revelations
StarHawk

will be picking up:
Ghost Recon: Future Soldier
Resistance Burning Skies
Gravity Rush
Darksiders II
Kingdom Hearts 3DS
Persona 4: The Golden
Super Mario 3D Land 2
Halo 4
Assassin's Creed 3
Call of Duty: Black ops 2

LittleBigPlanet 2 & Modnation Racers. Just the amount of content that keeps coming makes these far the best investments I've ever made for a full price game.

LBP2 gets new 'mm pick' levels twice a week, and normally there's at least 1-2 levels in there that I'm just blown away with. The most recent ones uploaded, for example, are some of the best user-generated platformers I've ever seen.