There is still money in adult. Yes, there are a few people who can still afford big ticket items. It just may take you 90+ days to sell them now a days.
I sold my tube pay site last week. It had nice sales stats and a 48% retention ratio. But few could afford asking price. I have sold plenty of other sites this year, and it took a combination of waiting, and negotiation to get them to close. You have many who waste your time.
You have to keep in mind that 93% of this industry, especially those on the forums, can't afford anything over $500.00. Out of that other 7% that can, maybe 2% is actually actively looking or buying.
Now, you take this economy and the glut on the market of people selling their shit off all trying to get at that 2%. Domains, empires, content, and whatever. All battling to get their goodies to that 2% who can actually afford it. You have longer and longer waits to close it out. Unless you go develop a market for your goodies.
In closing, short answer is yes. There are still some people around who can afford things. But the higher the price tag, the more bullshit you have to deal with and the longer it will take to close it out.
Good luck.