Nice! I bet you could make the money back, given sufficient demand (and this is not the first I've heard about sketchy service). Maybe just doing it on the baby bullets daily would get the job done.

I imagine you could probably test the waters by running an open AP with a suitable name and have a small web server behind it which lets people indicate their interest. Ride with it for a few days, wear the name of the network on your clothing, and see what happens.