(and then wished I hadn't, and swapped it for a Jupiter
)
Jupiter Ace? The machine that came with Forth when everything else had Basic? I remember using one in a shop once but they soon disappeared.
I had a neighbour who had some of the rarer machines (around here anyway) from the early 80's, he went from an Oric 1 then a TI99/4A to an Apple II , but found that being the only one with a particular machine meant no access to pirate software so he never had much to run on any of them, unlike the rest of us who had the more popular hardware.
I went from the ZX81 to a BBC Micro then the Atari ST before moving to PC's. Also had an Amiga and Acorn Archimedes for a while but they didn't stay around for long, the Arc was a great machine though and learning ARM on it was useful later.