I'm letting it grow now.
It requires more care than short hair, but also has the advantage hazel pointed out (though mine's not long enough yet to start trimming the tips).
And it looks better, in a totally non-fashiony way.
BTW, I
saw this today. Makes me shake my head. Brews, seriously? Malt?! This sort of baloney is one of the reason's I
don't grow a beard.