I try to limit myself to 1 a month and I was doing OK until the turn of this year, already I've had 13 punts!
It boils down to a couple of things for me, money and desire. Unfortunately I usually have more of the latter, but this year I've had a bit of a windfall so am able to punt a bit more often than I'd like.
I have to say that after a punt it usually keeps me satisfied for the best part of 2 weeks or so, so much so that I won't visit UKP or AW that much. However, after that I'm GFI and find myself trawling AW for a number of days in succession trying to get an idea who to see for my next punt. Even wanking doesn't stem the urge and often when I wake up, particularly on weekends, I'm thinking about it straight away, not good.
It's like I have an El Nino effect with punting. Every so often my urges are far greater than usual, then they die down again, until it's time again for the next 'storm'.