I remember the only chance I had to buy one, we were on our way back from an arcade function. We showed up at the gal's house and there were piles of computers, monitors, and printers laying in her front yard. It was also threatening to storm as we pulled up. Further back, there were three games sitting out in a shed on a dirt floor. Asteroids, Tempest and Missile Command. All of them looked rough, and we assume none of them worked. She was basically giving them away at $40 apiece. My buddy wanted the Asteroids, but I couldn't bring myself to make a decision on the Missile Command. My buddy handed her the money and started to load up his game. Minutes later we heard tornado sirens, looked outside and saw a funnel cloud about to touch down. Needless to say, my buddy grabbed the Asteroids, I passed on the Missile Command and I'm pretty sure we left the Tempest behind as well. We hopped in the truck and drove the fuck out of there, trying to beat the storm.