Is this the way you operate in the real world, too?
Tell me this, when you go to a restaurant and order something that tastes good but isn't quite as yummy as you believed it would be, do you refuse to pay?
BTW, I don't have a dog in this race. I'm not into owning a digital media library; I don't own an ipod or any similar device. If I want to watch a movie, I either rent it or buy the DVD; I've never DL'd a movie for free or made a copy of a friend's. If an artist I like has released a new album, I buy it; I've never DL'd a song/album or made a copy of a friend's.
This is a simple moral issue for me. In life, I makes my bets and takes my chances. Sometimes I win and sometimes I lose. That's just how life works and there are no guarantees. I just don't believe in taking what isn't mine or that which I haven't paid for (well, except for dumpster diving! HA!). And if I'm not completely and irrevocably 100% thrilled with my purchases, I live with it. It's just not in me to insist that my complete and total satisfaction must be met before I'll pay for anything (digital or not), nor to refuse to pay for it after I've used it.