I think whether or not I keep both bikes is dependent upon which new bike I buy. If I go for a lighter-weight aluminum/carbon combo that's a true road bike, I'll probably keep my hybrid. But the more I ride her, the more I think that if I get a bike that truly fits and is comfortable, I probably won't want to ride the hybrid much at all.

Which takes it out of the "do I want/need two bikes" category. Because yes, I'd love to have a utility bike separate from a road bike, but if I'm not going to want to ride it, that kind of defeats the purpose, doesn't it?