I have not yet bought a HD game on day one, because I've owned the HD consoles multiple times when the backlog of games interests me enough to buy the system. If I get any PS3 games on day 1 it will either be L.A. Noire, or Uncharted 3.
For Wii I have bought several games day 1
-Super Mario Galaxy - Absolutely worth it, my favorite game released in the last decade.
-Super Mario Galaxy 2 - Don't regret it, but didn't enjoy it as much as the first.
-Super Smash Bros. Brawl - I got hyped in on this one. It's a fun game, but I didn't really need it first day.
-Wii Sports Resort - Loved this game, one of my most anticipated games this generation before release. The only thing I didn't like was having to watch the 10 minute Motionplus info video before I could start playing.
-Kirby's Epic Yarn - A lot of fun, don't regret it.
-Metroid Prime 3 - A fun game, but I sold it and bought the Trilogy, I might as well have waited for that.
I bought the 3DS and Pilotwings Resort on launch day. Don't regret either yet, I like Pilotwings but only bought it because it seemed like the best of the launch titles.
I'm probably forgetting a couple, and there were other titles that I bought in the first couple weeks of release that I wish I hadn't.
