Interesting that this would pop up. I have a 6000L that I used to do some embedded design, end result being a publishing. I now use the Z MUCH less than I used to use my Palm based device, for essentially a portable rolodex.
I spent the weekend going through the house looking for rarely used electronics to sell in order to raise money for a Macbook. The Z was one of the things I'm thinking of selling. BUT, there seems to be no recent indicator of it's cost.
Mine has a 60X 1G SD card, and a 4G CF Microdrive. Firmware is original, and I've installed ZGCC and some other stuff on it.
I've also got two docking sleds, a single power supply, an adaptor for an iGo universal power supply, a custom serial cable (RS-232) and the expansion pack. I've ALWAYS kept the glass protected with plastic. (Until I did my presentation. The plastic made the display show REALLY bad on camera.) Since then, it's been sitting lonely.
It's not for sale yet, but could be very easily. What price could that list of stuff get me?