[DonRotolo]

1676 had their trailer wrapped, and I work in a car company that uses wraps for special purposes.
Wraps are best for hard painted surfaces; Freshmen won't do, but trailers, trucks and cars work great.
This is not really a task for an amateur. It may look easy, but it gets farkled real easy, so i very strongly recommend you let the wrap installer install it - it'll come out right, they handle size/installation/material/etc. Just provide them with an image (highest resolution you can get) and let them do their thing.

They last several years, longer if you keep them from sun. Wash by hand to avoid wearing off the ink, but I don't think 1676 ever washed the trailer (they got it maybe 10 years ago, still looks great).

Costs are determined by size. It may cost more if the installation is particularly complex, or a little less for a very cubical trailer. As a point of reference, a large SUV (complex installation) with complete custom graphics runs about $4k. A quantity of plain (unprinted) wrap material of the same size costs about $1k, not installed. YMMV

Mistakes: Don't make them. Triple-check and have many eyes verify the design. There is no excuse for that. You pay twice for a mistake, so don't.

Is it worth it? Yes.