Every while Its good to take a break for a few weeks and just reset, especially if you're single. Keeps you sharp. You dont wanna get too used to fapping. You also don't want to develop pr0n habits if you happen to be in a drought.
Also its just fun. Some people just like a challenge... like how long can a breh really go? What's my willpower game really like?
As stated before, good things tend to happen when your chamber is loaded. It's may be superstitious, but still. Its like in baseball when a hitter is on a 10 game non-hitting streak... so he just switches his bat, or he stops shaving for a while to try and get his mojo back.