Air Ride

[SpeedyV10]

I'd like to get peoples opinions on the different manufactures of Air products. I am seriously considering putting the Impala on bags. What are the Pro's and Con's of having a bagged car? What are the differences between manufacturers? I have been quoted 6 grand for a system (Air ride tech), and I have been quoted $1200 for a system (cannot remember mfg. name).

I guess I am more into the simple approach and don't really need auto leveling, and other 'add-on' features.

Please let me know your first hand experiences with different manufacturers, as well as your suggestions regarding bagging the Impy!!!