Re: boat wax
floor wax--that's an interesting idea.
If you think about it, your auto body may be exposed to weather, but not much to hard contact. But all surfaces of a boat, and especially interior, have constant contact with the people and stuff that goes in a boat and the things it rubs against. As does a floor.
When it comes to waxing or other cosmetic maintenance, it's like cars, which some people wash, wax, towel dry and cover constantly, some as needed, some peiodically (wax once/twice a year; wash monthly/seasonally) and some never. How it's stored makes a huge difference: full sun, clean shade, dirty shade; outside air, salt air or inside air; sand/dust/pollen; covered/open.
About the only thing people agree on, is don't bother waxing the bottom!