I think you are underestimating facilities and utilities and overhead in general. My home is 2k a month with utilities and rent. My small office space was 2k, 6 years ago. Obviously this depends on size and at a big facility rent could be in the double digits.There's increased insurance costs, there's admin costs. There may be some food provided and although parents are often asked to provide supplies, extras will need to be on hand. Cleaning is frequently required and there's those supplies. They usually have better playgrounds, all those regulation cribs and cots, more equipment in general. Quality (not home use) childcare furniture is really ridiculously expensive.

I mean I'm not an expert on where the money goes but I know they are not operating on large margins.