I think a better question to ask is how much would it cost me to replace certain services normally provided by a wife?

For example,
Sex. How much would a prostitute cost on an ongoing basis? Upside? The bitch leaves by morning.
Babies. How much would it cost to buy an egg, fertilize it and have another woman carry the fetus to term? Upside? After all is said and done no one can take your child from you without cause.

Other services can be contracted as needed.

'Intangibles' can be made up by developing strong friendships and family ties.