Personally I think you're overpricing these a little, when you can get Slate EX with 10 snares, 10 kicks, a few toms sets and a bunch of cymbals, made in a REALLY hifi environment, separate close/oh/room samples and a free player.. charging $55 for merely the .wav samples of one kit, with no separation of close/oh/room and no player is a little much IMO.
The last snare sounded good, def worth $5, but charging $5 for every single sample.. I'd rethink that personally.
edit: however, its your business.
i dont have nearly the volume of customers as slate
i have to reach 12000 dollars just to start supporting kontakt player.
and THEN i would have to buy several thousand serials to sell. at this point i only have 300 or so customers. so even if every customer came back, i'd have more than double my customer count in serials sitting there...
i think the simple fact that my samples ARENT slate but still work in a similair way are reason enough to buy them. everyone has slate now...
also, considering the amount of work that goes into making these, 5 dollars is a very little asking price to be compensated. honestly i can't even see this being worth it if i charged 2.50 and then had to pay the 30 cents on every paypal transaction giving me a net of 2.20 per sample, not including drum head cost, hosting costs, and others...
i don't know, 5 dollars seemed to be the magic number.