Speaking as someone who's helped build one... (Score 3, Informative)

All I can say is personal rollercoasters are a must-have for all true geeks . Check out www.speedcult.com For those of you who know about it, this will be on the esplanade at The Man this year (we were 2 streets off center camp last year) ((www.burningman.com)). If you're in the Detroit area and want to ride it, we can probably work something out. Oh, Free Spin is by FAR the best.