Eh, to me I'm really only interested in the PPC macs. My main interest in collecting old macs is the fact they are PPC, i just find them more interesting than the intel ones as their history is fascinating to me. I like messing around with old classic mac games and programs while there also being something endearing to me about running a non-intel computer and trying to carve a use out for it. I'm not knocking the intels and feel free to disagree with me on what i've said, historically I've been a pretty big hater of apple and only recently took an interest in their old computers, so that may skew my opinions a bit.
There is a BIG difference between growing up with the PowerPC versus being a collector - we mostly in this forum grew up with PowerPC Macs. In 1999-2000 when I worked as a PC tech at CompUSA, this is where I fell in love with the Apple PowerPC and the G4 Machine which I bought was a sawtooth, or AGP 350mhz model. I was tired of the Apple persecution by the sales reps there who tried to get customers to go away from Apple's section in the store for a stupid compUSA built PC. That day, I spend 1700.00 on a PM G4 350 Sawtooth, VPC3.0, and MAC OS 9.