I am one of the "more than 30 searches per day" beta users.
I just saw this looked at the 10$/mo price tag, gulped, then considered just how much better it makes my life compared to the google results, and paid up.
I wish the team best of luck and want to thank you for already having saved me tons of time and nerves!
30 searches/day comes to around $11/mo. We expect the quantity of usage will drop with time because
a) we make a better product that helps you find stuff more quickly (so quality of usage goes up)
b) lot of users are still searching more then normal because of novelty of product, testing etc.
Of course we could be wrong :)