My first computer! I bought it used in 1977/78. I paid $800 for the 32k upgraded one. I learned to program on this, but actually learned PDP-11 assembly from a book before I purchased it. Of course, not applicable to PET Basic! I loved the graphics on the PET's keys. I wrote a horse racing program (parents were into the ponies!). I stayed with Commodores - A Vic-20, Commodore 128, and then the Amiga 1000. I kept it until 1988 and let my cousin John use it. He sold it years later when I was overseas. I was bummed, but more so now. I would have loved to have had it until now for the nostalgia trip. Talk about constraints in programming. I get some of that now with PICO-8 and other toys, but nothing beats hitting PLAY to load a program!