I'm just considering changing for the weight difference mainly. I could keep my triple forever and never feel like less of a man for it. But I'm sure a basic triple on an entry level bike wasn't installed because it was the lightest thing available. I started with a new fork, next will come a lighter wheelset, then may be a double instead of a triple. If I can push it then there's no reason to carry useless (to me) weight. If I couldn't do it then I wouldn't change it just to fit in with the roadie crowd. I've never really been into doing the "in" thing anyway.