I mean if we handwave away the mortgage. A 10k/month mortgage is a $1.4 million dollar house on only a 15 year mortgage. Push to the 30 year and you're at like $2.2 mil. Besides 2k/month after mortgage isn't so bad, I wish I knew what the median after taxes and rent/mortgage income is but I guarantee it's nowhere near that high and it comes with nowhere near as nice of a house.
Insane, yes, but 2k/month is still a lot more then most American families live on after paying their rent/mortgage.
Lets not forget property taxes, which would wipe out again half of that if not almost all of that.