Interesting! When I got turned on to bitcoin (Punt intended) and starting to learn about it. I then began to think of some business ideas as to what doors bitcoin/cryptocoin open up in the business world and this was one of the ideas as to what I thought we might see in the future. Keep running with it man, the best of luck to you!!
It is a good application for Bitcoin. Your bank doesn't have to know what you're into, and the site doesn't need an address to send you spam.