I think this happens a lot. The I'm paying a lot for my vacation, so I can cut corners with other expenses.
But on that note, I don't tip housekeeping. But we are DVC. And we don't stay long enough to get an actual cleaning. We get trash and towel service, sometimes, if housekeeping remembers. Most of the time, we empty the trash and the towels are left on the sink counter. They spend less than a 5 minutes in our room, if that. Now, if I am staying on a cash reservation, I leave a tip, even for one night.