Are any of the axles "lift axles" so you can run as a spread or tandem? If so it can save you on maintenance cost when you are light weight and definitely save on tolls around the country.
Do they have a trailer that matches your required specs like lift axle(s), disc brakes, lighting, air dump valve, kingpin depth, spare tire holder, tool boxes, "J" Plates or something similar for the deck, etc.?