I recently bought a complete-in-box Radio Shack Armatron for $15, and I was super excited to have such a complete piece of history. I checked eBay out of curiosity, and was surprised by how cheap it was. I could have bought one any time, for not too much more.

And I remember going to Radio Shack at the mall as a kid and wanting that Armatron robot so badly! Being able to get these things now for pretty cheap and fixing them and playing with them with my kids has been such a treat.