We're in the same boat--I'm using the hybrid with trailer for most my rides, while the road bike only gets used every other week (every week if I'm lucky). I miss the speed as well, and I'm not a fast rider even on the road bike!

I like to think that having two bikes is only a precursor to having three bikes, then four, then...who knows? When the baby gets bigger, I'd like to do some touring. Right now my goal for that is a Surly LHT. And it would be great to have a "real" road bike--my current road bike is a Bridgestone RB-T. Of course, the RB-T is like my favorite old jeans, so I can't get rid of it.

The hybrid will come in handy for more than just the trailer, of course. It's good for family and group rides with people who don't ride often. On the road bike you would probably just be frustrated at the slow pace, I find these rides go easier when I'm on a slower bike. I also like to use my hybrid if I'm riding in traffic, especially in an area I haven't ridden in before. The upright position makes me feel more visible, and I don't have to worry so much about the tires.