Quality does pay off, however.

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.