Just keep in mind that there is a world of difference between a driving Experience and a driving School. Programs such as Richard Petty Driving Experience are designed for the average NASCAR fan that is looking for a thirll but has no interest in actually learning any driving skills. On the other hand a Driving School like Bondurant or Skip Barber will actually teach you high performace driving like a professional. An economical alternative is a track day event. Most commerical road race tracks offer some sort of Track Days which will provide a ride along instructor and allow you to drive your own car on a real race track for a few hundred dollars. These Track Days are a good place to start learning the basics without the expense of a full blown driving school. Check out
http://www.nasaracing.net/ for information on their driving events.