I have actually used the samples both to choose unknown books and ignore popular books. They are quite useful. But even with that, the unknown book still felt

I have actually used the samples both to choose unknown books and ignore popular books. They are quite useful. But even with that, the unknown book still felt like a risk at the $8 it was priced at. (It turned out to be really good until just before the end, then it went downhill fast. I didn't buy the sequel.) Had the book been $3 I'd have been perfectly happy and probably bought the sequel as well. At $.99 it would have been a sure thing.