It would make sense if they are local ladies. I know that when I am at home (In Portland), the economy out here isn't that great, and as it was said above, in order to make it worth it, a girl would need a few appts. When I am at home, I do not work that much, so usually will only get a room for a client that wants at least an hour or longer appt. I know how to find great hotel deals so usually this will at least give me a decent enough profit. The truth of the matter is, I usually only get the room for 1 person. It sucks, but it helps if you can team up with another local girl and say "Hey, I have a room today if you need it" and split the costs.
Now when I am traveling, I have to have a place to lay my head at night so incall is always available, and usually the only thing available
Lux