+1. I've ridden relatively heavy bikes, and I've ridden relatively light bikes. Unless the bike has a special purpose where some extra weight actually helps (like a bike designed for loaded touring or commuting), I'll choose a light bike nearly every time.

It's funny that this thread has come up right now, we've been slow at our shop the last couple of days, and we've been going around putting various wheels on various bikes and weighing them to compare the weight difference based on the different wheels, tires, and cassettes. It's pretty amazing how much weight you can drop off a bike with relatively light wheels if the bike had relatively heavy wheels on it before.

I've been calculating weight (and cost) for a lightweight wheel build I'm going to do soon for my new carbon framed bike. Fun stuff at the bike shop when things are a little slow.