Least expensive Spinning bike for indoor cycling

I've been teaching Spinning (indoor cycling) for a few years now. When I was going through the Johnny G Spinning Certification training, I wanted to practice at home.  All of the indoor cycling bikes I found were mostly very expensive.  The Johnny G Spinner® Sport is the least expensive bike I could find for $499. Plus, it came with several DVDs and free shipping was a promotion at the time.  The bike is not as smooth as the more expensive ones, but I'm please with it overall for the money. I teach several types of classes five times per week, so I don't need a hard core bike. I highly recommend the Spinner® Sport indoor cycling bike for occasional use at home.