You could say that the entire selling point of Apple is that it's better quality than the competitors (even though it's still pretty bad if you compare it to a bicycle).
I guess it's more difficult to spot quality when it comes to software. I would definitely pay for high quality software. It's just that usually the crap quality of a software I'm using only shows slowly over time in little bugs and bad usability and there's no way for me to check for it beforehand.