Car upholstery used to be pretty weak, so whenever anyone bought a new car we would get ads for seatcovers that even included lots of samples. (I played with them when I was little
) Many people did buy the covers, then remove them when it was time to sell the car, and others would use the original upholstery and then buy the covers when it wore out. The former always made my brain hurt - they paid for it, they ought to enjoy it without the inconvenience of uncomfortable or illfitting or not quite matching covers.
Now upholstery it much, much better. We have over 120,000 miles on our motorhome, and if you remember that I am a bit overweight and yet swivel in the seat, sliding on the fabric about every hour to get in and out of the seat when traveling and it doesn't show a bit of wear, it is really amazing.