my biggest regrets in order:

1. xbox 360
2. vbulletin
3. ps3

xbox 360 is #1 because wow that shit is stupid

vbulletin #2 only because wow xbox 360 wow

ps3 is #3 because it was better than 360 and since it helps cure AIDs and has its own version of second life like a second life lite if you will that makes it better than vb