I don't think a man closer to her age, wants to be with her. I don't know if it's true or not because the media does tend to write alot of crap, but I did read that Madonna was very dominating in her previous marriage and most men won't stand for that. They want to wear the pants or be "equals". Also I read that her husband complained about lack of sex in the marriage. Apparently she would cover herself in anti aging creams all over and not want to it off by having vigorous sex.
Lol... I can believe that. Genial people tend to be pretty exccentric in their "ways".. and she's most probably a workaholic (that may kill sex drive to some extent too). Tho' somewhy I think she'd like to be a submissive one in bed, maybe even would like a very rough sex, I just think so. And maybe these "old" fellas can't provide her that "beating" lol..
Overall - I'm a big fan of Madonna. Not her music, but mainly a personality. A determination of steel and crazy drive to succeed at whatever she sets her mind on. Very progressive too, which is not that common, as people tend to "slow down" with age and become boring and predictive/etc..