I don't mind OTA but what I don't like is the limitations of it as well. I want to be able to d/l the theme anytime I want regardless of the amount of times. I paid for it, I shouldn't be limited to a few d/l's at a time. A good example is MobiHand, all of your apps and themes are there you can d/l like 20 times before they would need to reset which is fine, its easy. I have purchased a few themes from another site and after 3 d/l my link no longer worked and I can't get an answer on how to d/l them again. So I don't mind paying theme developers at all, but I can't pay for something that has such limitations.
The reason I want the ability to d/l a lot of times is I wipe my BB a lot since I play with the beta's a lot.