A few months ago one posted here on HN, explaining how most of her clients were men who threw away their actual families to chase after fast-paced careers (like start-ups), and often wanted to just talk and have her role-play being a wife (including sex). I have no idea how many people here on HN fall into that category, but her clients didn't sound like they were finding that fulfillment in her services that they seem to ultimately be seeking after in life.