I agreed to buy my specific trailer sight unseen, although I had been in one of the same floorplan ( an already sold unit at local dealer ). I made the deal on my trailer over the internet and phone at a dealer in Ohio. I still had the option of leaving without the trailer if it did not meet my expectation.
It was new, and was what I wanted, so I wrote the check and left with it in tow an hour later. Well worth the 1300 mile round trip.
An important part of the decision process for me is to actually go in and sit down, look around to decide if the floorplan is too my liking.