I only buy certain games on launch day. Franchises that I know are worth the full financial commitment.
Games are expensive as it is, so, if I want a game that I'm unsure about, I wait.
Last year I got Red Faction: Guerilla for £15.. Well worth it, so now I know that when the next one comes out, I will make the plunge. Same with Borderlands actually.

I have games I need to finish anyway and want to try and get the bulk of them done before the 3DS owns my thumbs.
