Why think about selling it? I can't imagine selling my Z32. It's been ...mostly, lol, reliable the past 4 years. The short downtimes don't bother me at all. But that's just me.
If I get pissed off at my Z I just look at some pics or vids of it to make me remember why I spend so much time and money working on it. Then I search through vendor sites looking at what I need to fix to get it working properly and stuff I can upgrade when I'm in there :D