I have a Featherlite 20' enclosed bought it right before COVID.It was used by a plumbing contractor.
Not everyone wants a 24' trailer guys with smaller race cars, motorcycles,utv .....etc want them. When I was looking I found some really good deals on smaller trailers.
I have hauled my e-body with mine.
I have a 32' LQ trailer with a 20' garage, it has been just find hauling my Darts and I even used to haul my 69 D200 long box in it along with my 69 Monaco 500 convertible. Sure it is tight tying them down, and anything else I need to bring along goes in the LQ area, but 20' is adequate for most vehicles just going to car shows.