"have you ever thought about trying some recruiting? maybe you could start a thread with older women in it? you might find out that older women aren't as plentiful in the amateur adult industry. especially if you recruit true first-timers. let me know. i'm not against having another sister-site"
As a matter of fact I have. I even jokingly mentioned it once to my wife. She made it clear that was out of the question.
I happen to know some married women who give their husbands Boudoir photo's taken at local photo studios. Of course the only photo's they showed us was the flattering implied nudity. Amazing what a photographer can do with a stay at home mom you wouldn't look twice at on the street. Before you ask my wife has refused to do a Boudoir shot.
I would have thought in this economy more women would have been answering your ads; although probably disappointed because they all think taking off their clothes is worth a lot of money. The few women I know who even gave a price (3) are in their thirties and it's ridiculously high.