I don't want to sound like a superficial asshole and while I agree there are a few available women that age, unfortunately their looks have faded with age. While men also get wrinkly and old, we are still visual first and the desire to be with older women is not as great when they were younger.
Of course there are great looking older women but rich celebs do not count because of all the surgeries, personal trainers, and makeup they use. Try finding a lot of attractive 35+older women who are still single. It's very hard.
Older women, i suggest, whether P4P or not, have advantages in attitude, maintenance/cost,
experience and service, which makes them better in all these departments. If that is what one
is most interested in, rather than mere superficial looks, then it is a win win situation. OTOH,
it is possible to find underpriced young hotties who have a low self-esteem and or a slight flaw
{e.g. mark on the face, baby lines, etc} who perform well.