In order of what they can extract from a male: trophy wife > sugar baby > > > prostitute.

Society (namely women) are opposed to prostitution because it devalues what's on offer. What does a hooker cost, $200 for an hour and she leaves at the end? She's not taking 50% of your income for life. She can't take 50% of your assets. She can't get a court to force you to continue working 80 hours a week in perpetuity to provide the lifestyle she enjoyed while your cock was balls deep in her.

Even in a relatively expensive market like Australia with legal prostitution, a legal, 18 year old blond bimbo fucktoy who will do anything costs $1000/hr. Most 25-30 yr olds are max 500/hr for a white girl, half that for non-white.

At the rate the average wife puts out 2 years after marriage it's a much cheaper proposition to bang hookers when you want.