I've been a hardcore Quark user since 1990, and at one time, I loved it. However, they screwed me so many times over the years, and I just had to bend over and take it. Cryptic registration keys. Sure! I can't be trusted anyway. Quark 5, a minor upgrade for what, $500, $600, $700! Sure why not! It's got to be worth it, right? No OSX support for what, 3 years? Thank you sir may I have another! No multiple undos, years after everyone else has figured out that puzzle! Thanks Quark, for keeping me on my toes!
I FINALLY convinced my company to buy me InDesign about a year ago, and I am not going back now. It is so vastly superior to Quark, it's not even funny.