Does the amount of stuff added matter? If the quality is good I honestly don’t care.

Lion was a bit of a dud. Mountain Lion doesn’t add much but it improves massively on Lion. It corrects its mistakes. I’m very much ok with that, I don’t need flashy new features. I really don’t want Apple to start pulling features out of there ass (especially now that they switched to a yearly update cycle), mere refinements every year for something mature like OS X would be awesome.