$15 bag or $15,000 bag - after watching that news special on handbags and germs, I wouldnt put it down on anything that looked like it had something suspicious on it (not just floors), and since we cannot "see" germs, I'd rather hang a bag in a bathrm than put it on the floor.
In terms of damage, I'd be a lot more tender with vernis vs epi, but still do not want to throw either onto a greasy mess of "quest-ce que c'est?"