As a female I have to disagree a bit with the concept commonly put forth here that men who orgasm less are more attractive to women.
In college I knew a guy who was interested in tantra and confided in me that he never orgasmed. This may well be true, because he certainly did exude a powerfully sexual energy. Now to us girls, this was just plain freaky. We used to call him the "Champagne Bottle" because his "contents were under pressure". It was not anything he outwardly did, but this strange energy he had that made us all avoid him. As far as I know, he is still single and bagging groceries at the local supermarket.
In my own experience with men, I have found my best relationships have been with guys who were open to feeling sexual bliss whether or not they had a partner. I had a boyfriend who did not masturbate and our sexual relationship was disappointing and short-lived. The most sexually fantastic relationship I had was with a man who enjoyed porn and masturbation even alone. The fact that he was not sexually seeking a partner was an intense turn on for me and the sexual aspects of our relationship were extraordinary.
My current relationship is with a man who has been unable to orgasm for medical reasons for quite some time. (loss of feeling) Even without orgasm he is still very moody, depressed and does not seem to display any of the positive advantages of abstaining from orgasm.
Anyway, just thought I'd give my 2 cents.