They get replenished as often as they are stolen. How long they last we'll never know!

My MIL has hotel towels she stole decades ago. They last a pretty long time.

Let us recall the good ol' days, when hotel towels were tastefully branded and of course got swiped (marketing marketing marketing!). The modern counterpart is a passive-aggressive notice on the wall that says that if you care to swipe a towel they will gleefully add it to your credit card bill. No fun, no cheer, no margin, no marketing.

Virgin used to print a message on the bottom of their tableware that said "Pinched from Virgin Atlantic".

https://colinseymour.co.uk/pinched-from-virgin-atlantic

Hotel towels are white stains are visible. We remove it if it get stained, ripped or stolen.

It depends on the guest how often towel last. Construction crew, or people with makeup, hair dyes stain easily. Local guest (People from the town) also stains more towels.

I probably used more towels during covid compare to previous 2 years.