My reasons are similar to other members' responses so far. I've always been an introverted nice guy type or the opposite of a "player". I suppose if I spent a lot of time in clubs, which I haven't since university, I could be more outgoing and probably get lucky once in a while. However, what's more humiliating? Being rejected by a ton of girls you wouldn't pay to fuck, or just paying to be with the type of girl you fantasize about.
Before I started pooning a little over a year ago I agonized a lot about being single and not getting laid. Now I don't because I've had the opportunity to be with women who look as good as women I see in men's magazines and adult videos and live some of my fantasies. If anything this has improved my chances with women since I do not have that needy I have to get laid feeling and I know there is nothing sex-wise they can give (or refuse) to give me that I can't get somewhere else easily. The prospect of sex gives women a lot of power over men that some take advantage of. When you are willing to accept alternatives to the "dating rules" that favour women you take that power away.
I hate to say it but I think this is why "players" get all the women they want. When you will drop one woman for another without a second thought or at least not commit to one woman and be willing to cheat on her for another then you never have the needy feeling driving you to meet that woman's expectations. The more you do not commit to a woman the more they want you and give you what you want to get you. Anyone get what I'm saying here?
Also, as I've gotten a bit older I've realized that girls are not all sugar and spice, and that marriage isn't going to bring me happiness especially if I have to settle for someone that isn't everything I want her to be. Pooning helps me enjoy being single without feeling I have to find someone.