Dodge suspension
 

I am thinking about buying a new Dodge 3/4 ton power wagon truck. My only issue with the 3/4 ton is the rough ride. If i purchase the truck it will be my everyday driver, and I need the 3/4 ton to pull my trailer. The salesman at the dealership said I could order the truck with air bag suspension instead of the standard springs. Does anyone out there have any experience or knowledge about the air bag suspension on a 3/4 ton truck? Is the ride a lot better or is it an overpriced upgrade that is not worth the extra cash? Any help or advice would be greatly appreciated.
Thanks