I'd be surprised if you don't do well with AR too. You could probably benefit from an active sales force a lot, though I could certainly understand why one wouldn't want to go down that route. The place I get my hair cut at, for instance, makes dozens of these calls a day yet would probably never hear of your service without a cold call.
Hey Patrick, any chance for an affiliate account with your service (as opposed to your white label)? I'd gladly refer my barber, dentist, plumber, etc. As a stats junkie, Id like to see how many of my referrals actually sign up. Getting a reward for it would also be pretty sweet.