New trailer delivery question

We live just outside of Elkhart and I see them being hauled all the time. Larger units are usually towed by a heavy duty dually, smaller ones are on flatbeds. I travel US 31 a lot and see a lot of units. Most of them are traveling at or just over the speed limit. Rarely see anything going way over. Maybe once they hit the interstate, they kick it up a lot. When we bought ours, it came from a plant 3 miles from home and about 15 miles from the dealer, so not a lot of miles on it. Also kept the price down.