I'm sitting at a microsphere right now. After the dot.com bust the company I was working at had 30 of these things, so I grabbed one for 50 bucks (the prices on their web page are outrageous). After a few months I found the chair made my ass hurt and my girlfriend noticed what looked like a blood clot, so I threw that out and bought an aeron. I kept the part of the microsphere that holds the monitor and keyboard and added a bookholder, so people do still ask me if my desk was once the cockpit of a UFO. That and the pointing and laughing.