I'm thinking about getting an open trailer for general hobby use (hauling steel tubes, dimensional lumber, an occasional machine, and an occasional car). I'm thinking tandem axle, electric brakes on both axles, 18' long, and 7000 to 10000 pound GVWR. I've seen many of these with a slanted dovetail on the rear-most 4 feet. I understand this dovetail combined with 2 short length ramps make it easier to load a low clearance vehicle. But I don't understand why a flat bed and 2 long ramps wouldn't do the same job. Do long ramps bend easily? Are they uneconomical in terms of cost and weight compared to a dovetail? While they might be good for loading a car, I don't see them helping if I'm carrying long tubes or wood.
Also, I've considered an enclosed trailer but have yet to see any with strong tie-downs that would be appropriate for tying down a machine. And they sure are expensive.