Alright, my Wii, also a launch Wii, started acting up and finally wouldn't boot up.
I sent it in for repair, they couldn't fix it and scrapped it. I did save all the game files I could over to an SD card, but sadly any online game couldn't be saved to SD. So MHT, Brawl, Tetris Party, MKWii, Goldeneye and about 10 other games saw their files meet an untimely end.
Nintendo is replacing my Wii, though the first replacement they sent me was garbage. I'm getting try #2 on Tuesday, and I'll have to hope it actually is a perfectly working system. It has been a very painful 2.5 months without my Wii.
I would try the repair, the WiiU isn't coming out for at least a year. After the 3DS debacle, the Wii is coming out holiday 2012 at the earliest. I still have almost 20 Wii games on the shelf that still need beaten, so I couldn't go that long without a Wii. The PC, DS and 3DS just don't occupy my time like my Wii has.