We had a factory installed (by Keystone) laminate wood floating floor in our Everest. When it was brand new, the floor looked great. After a couple of years and a few thousand miles of travel, the floor started to get very small gaps between the pieces. Plus running my hand over the surface, I could feel uneven spots probably due to moisture. Would I want a laminate wood floor again in the next RV we buy, the answer is NO!!
I had real wood flooring put down in my AS. Rather, I did it myself. The temps I stayed in went from 110F to as low as 10 below zero. I never had any problem with the floor, cracking, breaking, splitting, or gaps nor anything else. I, personally, think that if you ask around, you will always find some nay-sayers when it comes to any project. And, I'd sure take the word of a "floor man" before I'd bet my money on advice from Home Depot.
I laid out my current project over on RV.net...and all the feedback I got was negative. No information on how to do what I wanted to do..but, a whole lot of info on why it would not/could not/never would work.
I'm currently in the process of removing every bit of carpet from my 3055RL. When it's done, the entire thing will be nothing but laminate. I have a 20 year warranty from the producer...and, if it fails? I just reinstall something new. Most of the people here won't keep the RV long enough to really worry about longevity.
In addition, I'm laying radiant heating in the livingroom/kitchen and about a 2X2' piece in the toilet. I like a warm foot. And, I got 46 RV.Net no's on why I couldn't do it. You can do anything you want, if you get the right stuff to do the job to begin with...and pay the price. If you skrimp and go cheap, you are going to be disappointed everytime.
I've seen too much laminate put down in commercial establishments to worry about it in a trailer.