Now we have the Casio LD-80 in place. I don't often use it as a drum machine but I do use it for a MIDI percussion controller. There's something much more satisfying (and easier) about laying down a drum sequence by beating on drum pads instead of banging on a keyboard.
You can see my Atari 2600 there on the shelf. I use it as a synth using Paul Slocum's Synth Cart. There are some really great rythmes on that cart. I'm thinking of checking out his synth cart for the C-64.
And yes, that's a Vectrex next to the 2600. I've got a crapload of vintage videogame systems.