If you are planning a lot of traveling like an entertainer might, the high end ones are built on rugged commercial chassis for lots of use.

The less expensive ones are built on light truck chassis, less expensive, less durable, less quality all around.

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.