I have a PB G4 1.5Ghz 15" and it's a great machine whose portability is perfect for my needs. But, to be honest, needs aside, it's an iMac G4 that has the design that I love. Because of this, I've been checking the prices lately for an iMac G4 with 20". It seems like the prices for a used G4 are higher than those for iMac G5's with higher processor speeds? What gives? And why is it so hard to find G4 20" for sale? I can't find one to buy at a good price even if I wanted to it seems.