Originally Posted by dscheidt

Modern derailleurs are all so wonderful, it makes little difference, beyond looks and weight. There's a lot more difference in shifters. If there's nothing broken on the bike (and there shouldn't be), beer. Or, if you insist on spending the money on the bike, some accessory. lights, a computer, pedals/shoes, some clothes, beer, something like that.

Really. It's a nice bike. Go ride it.