My only wish would be for a paid tier between 100 and 3000. If I went hog-wild and did everything I want to do, I'd probably use 200-300 a month. I would love to pay for that. But there's some loss-aversion psychology happening that makes me not want to pay for 3000 if I know I'll only use 300.
I'd give you my cc number right now if you did a 1000 zaps at $10/m.
That being said - you know your business better than I do. If it would hurt conversions of $20/m more than it would help, I get that. :)
<3 you guys though.