I don't regret my purchase of a cyclocross bike in the least. Recently, I went on an 80 mile ride, mostly road, but included some singletrack trail. Having the versatility of a cx bike is a good thing. I got quite a few looks on the trail - mostly the what is that person doing on a road bike look. Its fun. I'd take it to Mammoth Mountain if it weren't for a couple of stretches, just to mess with people. I use it for commuting, touring, fun rides... just about everything.