Enclosed car trailer questions - before I buy.

Hey gang,

Since my 66’ is done and the new garage is not built yet for it.(yes cart before horse situation.)

I’m looking at a car trailer - enclosed for road use and storage.
Here in Connecticut used trailers are more than some new. Like they are gold plated or something. I’m looking at new and there are plenty of manufactures in the Georgia area to choose from- 16hrs away.
I’ve never owned an enclosed car trailer and can save some real money if I drive there to pick up. Again simple box on axles to me.
What are important facts I should be looking for and to stay away from when buying?
Syleng1