I'm actually serious and I don't know the answer or I wouldn't ask.
I've seen both cases. Some people use them, some don't. What is the
advantage of using them?

I don't recall you mentioned that you were ALSO putting up a tower, so
IF, for example, your coax is running up the side of your house and
then across the roof, another answer is "to keep the coax in place"
vs. letting the wind slid it across the roof.

--
--Myron A. Calhoun.
Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge
NRA Life Member and Rifle, Pistol, & Home Firearm Safety Certified Instructor
Certified Instructor for the Kansas Concealed-Carry Handgun license