Which part? The hosts often got the better end of the deal.
Today i would much enjoy a monthly elaborate dinner with my girl in exchange for 1x using a bed in a spare room i never use. Renting it out for a day for $ to a stranger is not going to happen but if it did it wouldnt cover the cost for professional cleaning plus a private cook.
I also had friends who never cook and ones who barely clean. I did whole office buildings, vacuuming a livingroom is not going to impress me.