I'm abstaining from everything sexual for as long as I can. Currently I have been free for 9 full days. I am single which I suppose helps.
In my case, it is because I want to keep my testosterone levels high, which helps with building muscle, which is what I'm trying to do right now. Having an orgasm leads to a temporary increase but your baseline becomes lower. Abstaining makes your baseline become higher.
And testosterone levels affect a lot of things - funnily enough they also affect your attractiveness to women because of the way you smell. That is to say, a man who takes matters into his own hands too often will be less attractive to women.