When I was a kid my family had a PC-2, purchased when Radio Shack was blowing them out *very* cheap. Along with the computer itself I had the cute little plotter thing. I used to play with that for hours, drawing spirograph-style drawings with short BASIC programs. (That was the one problem, actually... we never had the RAM expansion cartridge so I was bumping up against the top of memory on a fairly regular basis.)

Last I saw it was around 1999 when the rechargeable batteries in the plotter were long dead and I seem to recall the main unit was having some sort of LCD problem. Sad, really.