I didn't "go" from one to the other. I had a hybrid, and then got a road bike. I still have the hybrid and it's my commuter. My road bike has clipless pedals and is intended for long weekend rides, but my commuter has two sided pedals, a more comfortable seat, racks and fenders and I can just hop on it, no matter how I'm dressed, to run errands or commute. I like having both, but I certainly am glad I don't have a road bike exclusively. Guess it depends on how you intend to use it.

There are also bikes that give you the best of both worlds, like a touring bike. I"m always going to the Rivendell pages just to dream, or you can look at LisaSh's bike on her site. Mmmmm....some day!