I've had a Wii since launch date. Now that I have a standalone BD player that CNet says is faster than the PS3, I really don't see the need for another game console (as if I really ever did).
I'm still miffed about the disaster that was NCAA Football 09 for Wii (Would it be overboard to call it the 9/11 of gaming? Yes. But you get my point.) But that's about the only drawback I have had on the system. The Zelda game was completely awesome when it first came out, and I have bought a few others as time went on -- Mario Kart, SM Galaxy, a couple of Guitar Heroes, Wii Sports Resort. GH3 got kind of stale at times, but GHWT has kept me going because the songs are a lot better -- and I don't even own the full band kit. The other Nintendo-made games are good for extended gameplay. I also bought the DDR games, which only lack in the ultra-cartoony graphics.
I hear a lot about all of these "blockbuster" games for the 360/PS3, but I never really have gotten into these. I played Doom and Half-Life back in the day, and I can really only shoot up so much stuff. Maybe it's my short attention span. If you guys like the systems, awesome. I just haven't figured out the appeal of the more-powerful ones, aside from the graphics looking better.