A woman used craigslist, ny - to look for wall street husbands making more than $500k/year.
Apparently, she made her 'business' case stating that in NY $500K means nothing. In an interesting response, ".. "plain and simple a crappy business deal."
"Your looks will fade and my money will likely continue into perpetuity ... in fact, it is very likely that my income increases but it is an absolute certainty that you won't be getting any more beautiful!" the banker wrote.
"So, in economic terms you are a depreciating asset and I am an earning asset," he said. "Let me explain, you're 25 now and will likely stay pretty hot for the next 5 years, but less so each year. Then the fade begins in earnest. By 35 stick a fork in you!"
"It doesn't make good business sense to "buy you" (which is what you're asking) so I'd rather lease,.."
So the seeker's economic interests were undercut by the provider's economic interest ! - c'est la vie :)