You charge $30 for your products, so the scale of "success" will definitely be different. If you can convince 100 true fans to love your product, you'll make enough to survive, and iterate/improve.
When I shipped my first apps, charging $0.99, I had a really hard time convincing users to download. The whole first year, I made about $1000. (And I was happy!) I would have been ecstatic if I had ever reached 100K downloads @ 99 cents. In the space of Free Apps, the scale of success is different. I wouldn't be very happy getting 100K free downloads. :-)
Now I'm not saying I am not happy with 8 million DLs. It's pretty frickin' awesome, and I had never predicted it. But it's really a psychological trick to reset my bar at 10 million downloads, or 20 million, or even 100 million, to convince myself to keep working hard. :-D
Good luck with your bank approvals!