These are the games i bought on launch day in last couple of years:
Uncharted 2 & 3, The Last of US, COD MW2, 3 & Black Ops 2, Portal 2, Guild Wars 2, Arkham Asylum and Ico Collection on PS3.
New Super Luigi U, Wind Waker HD & preorder of Mario 3D World on Wii U.
Most others i have waited for price drop.