When I was a lad, I wanted to buy a coco2. I ended up buying a c64 because of the games.
OS9 and the 6809 as stated in the thread are a very nice combination. I learned how to machine language and assembly on a multi-68020 OS 9 cluster. This is part of the reason I wanted an Amiga, that and a production job. Assembly on the 680x0 is so easy as compared to x86.