Depends on the boot - some yes. If you go with something like an Ariat roper with a non-leather sole they are as good or better than the average dress shoe.

Ropers & Lacers Heritage Roper - Ariat

I actually haven't worn boots in quite some time, but they were a good option and I thought looked professional if you chose something reasonable (such as the roper). If you get too pointy and a bunch of stitching they can be as tacky as the aforementioned sneakers...