My first gaming was done on my C64 and my bestie had an Atari 800 which we loved because cartridges meant fast load times, my C64 only had cassette tape. He then got an Atari ST which we also thought was a really good computer. This is in the UK. I was so jealous of that 800 back then, it was an impressive machine.

Edit: hey Ross, if you're out there, it's been 20 years, I still remember the good times!