Number 17: The Atari 2600 keyboard... It came with a BASIC cartridge and the keyboard was to be plugged in the joystick port: that's how I wrote my first BASIC programs.

It was extremely limited (and needless to say my parents thankfully realized I needed something a bit more powerful so I then got an Atari 600 XL) but that's how it all started for me!

I don't know if there's anyone else on HN who actually used that Atari 2600 BASIC cartridge+keyboard as a kid?

P.S: I can't compete with such a collection... My rarest keyboard is a Cherry MX-5000 (it's a split keyboard) and second rarest is a venerable IBM Model M, but in "industrial" livery (olive grey instead of beige).