I would bet these 500 Marriott points cost the hotels something like $2-3, and the cost of serving the rooms is significantly higher than that - particularly in North America, Europe and NE Asia. Were I the GM of a LSPG property, I'd be keeping a close eye on changes in housekeeping demand and provide feedback to Marriott corporate as required - as it'd likely be better for my bottom line to pay for the 1,500 points than hire and pay for additional staff. a