[ahizzle]

Agree that you should pursue this one harder...

You have a nice "inside track" by already being in the industry... and it's quite likely that you're very passionate about this topic, which will come through once you...

...Consolidate your pitch to more tightly communicate the opportunity, the problem in solving the opportunity, and how your product fixes that problem. (Preferably in a way that works better than existing solutions/semi-solutions. ;)

Remember, you've got to put your salesman hat on when making your case for a product like this. What was the principle objection your potential customers raised when declining your proposed solution? ie: Why didn't they like the fact that the end-user has to pay?

Is there a way to shift that cost elsewhere while maintaining the integrity of the system?

Have you listed all of your assumptions with that solution and thought of ways to test and prove/disprove each one?