I just got mine buzzed nice and short. Maybe 1/2" on the side.
Wait? WHAT? There's madness to my method. Or something like that...
I'm a Norwood Class Va or VI. Nothing on top and not enough donor follicles available to do anything more than The Combover From Heck. So, I buy my hair off the shelf. For the price of what would be a really inadequate hair transplant I can get maybe 50 to 100 pretty darn nice wigs and a lifetime supply of wig tape and whatnot.
So, I cut my native hair really short so my selected hair I present to the world fits better, cooler, and more comfortable.

(Translation: A nice wig makes moving back and forth between two worlds easier.)