I have a special set of rechargeable clippers for doing my whole crotch area including my pubes. I don't shave the pubes in particular completely because the whole plucked chicken look just isn't my thing, but I do keep the hair super short for one simple reason.
When you're reasonably hung, but only when hard because you're a grower, and you have foreskin, having long hair in that general region can be a quite painful experience, especially when at least one pubic hair gets caught between the foreskin and the head, then something excites you and makes your manhood begin to grow.
When the hair starts getting pulled on by the combination of the foreskin and the head, it can get quite painful, so the only real solution I've found to this problem is to ensure that the hair in that area is not long enough to be able to get caught in the foreskin when it's soft. The rechargeable clippers are a wonderful thing for this, as it keeps the hair short enough to not get caught in the foreskin, but at the same time, does not scratch or scrape the shit out of my more sensitive regions.