Your title makes this sound controversial, but it seems pretty straight forward. If as you said, you sold a few hundred copies at both $2.99 and $4.99, haven't

Your title makes this sound controversial, but it seems pretty straight forward. If as you said, you sold a few hundred copies at both $2.99 and $4.99, haven't you made enough to renew the $99 dev fee and still be ahead? Assuming 'a few hundred' means 300 (could be more) and charging the minimum you stated of $2.99, that's a little over $600 profit after Apple's cut. Pay the dev fee and you are still up $500. Doesn't sound like much, but match the success of this app (which I think you feel is actually a failure) with 3 more apps and you have $2,000 a year--enough to get a new, tricked out Mac every year.