Interesting theory! Sort of cyberpunk too, can't avoid imagining a Blade Runner sort of world when thinking of rich men making this decision.
I think it will also probably be both sexes doing it.
"Honey can we please buy this sex doll, it looks like my former classmate?"
"Oh alright, but only if I can use it too."
Once sex is commodified, I think relationships might start being more honest. At least until corpos turn it into a subscription service, and then jack fees up.