I love a lot of the keyboards on here (especially ones with an integrated track ball) but I'm a poor grad student under deadlines; even most kit-boards are too much of a time sink for me to soldier together.

I know at least some of you like trying new boards all the time. And I'm guessing some of you have one or two daily drivers and then 3 older boards; maybe one that was a prototype build, or a novelty micro-board that was fun to just play with but not use, etc.

I would be happy to effectively fund a new kit/build for someone by buying one of those older (assembled) boards, but I don't know where to look.

Is there any kind of used market, or do you guys have any recommendations?