Ripping out interior carpeting and laying down a layer of gritty, grip-tape style truck bed liner is a popular modification for Jeeps and trucks. It is extremely cool and tough looking, but after scrubbing the stuff for a few hours, I’m closer to contracting a soil-borne illness than having a clean truck.
That’s the kind of floor my International Scout has. The theoretical advantages to ditching carpet for bedliner include less grossness when waterlogged and better resemblance to a hardcore off-road vehicle. Obviously it also offers some rust inhibition and ding protection versus a bare metal floor, too.