Before a year, I have longer hair. But the truth is: Long hair costs time. Washing, combing, cutting, etc.
There is an other negative aspect of long hair:
The hair is sometimes going before or in your eyes. If you make sports or you work this is really annoying.
So I decided to go the practical way: I got a beard trimmer (It works like a electric sheep shearing machine) choose lenght-step 5 and cut beard and hair in one step all two weeks.
I have saved a lot of money and time and it looks really acceptable. A lot of friends told me I look now better and more serious as with long hair.