We have a section of hardwood floor in ours (we didn't install it - it came that way). It looks great, but there are some downsides in actual use.
1. Our chairs and the table have scraped the finish off in a couple places - you have to remember the whole trailer is moving, a lot. (Ours has a dinette with two separate chairs, rather than a booth, and the table folds down. The leg of the table hitting the floor has rubbed a pretty decent spot in the floor.)
2. We track in things like sand, which can't be good for the finish.
Part of me wants to sand it down and refinish it, and put felt pads on the bottom of that table leg (I already replaced them on the chairs). The saner part of me realizes that's going to be a bunch of work.
1995 Airstream Classic 30' Excella 1000
2014 Ram 2500 Crew Cab with Cummins 6.7L Diesel
Sold but not forgotten: 1991 Airstream B190
Sold: 2006 F-250 6.0L Powerstroke Supercab