When they are on sale (no, meh doesn’t qualify).
The last towels we bought was at a large chain department store. My wife was looking for something and I wandered over to the towels. I discovered someone had mispriced some nice bath sheets at $8.00. I think normally like $48. I checked with the lady and she said that tag came from corporate but it was an error. However since that was the marked price she agreed to sell them to us. We were nice and only went home with 6.
Yes, I know. Not a sale. But a bargain!
I have had acquaintances who obviously allowed Marrott, Hilton, Hyatt, Wyndham and a couple of other large hospitality chains do their towel shopping for them. I think our most recent towels came from Meh or Side Deal, but others have been sourced variously elsewhere for ephemeral reasons. I still keep my tie-dye underlay towels around, for one thing.