The e-brake serves TWO important functions.

Beam-types have a few advantages that keep them relevant. If your arsenal doesn’t include one, you might want to think about acquiring one.
I learned a trick from an old racer that works real well to bleed that rarely leaves me repeating my work.
Bleeding brakes is one of those jobs most of us know how to do, but when a hard-to-bleed system pops up, experienced techs have a few additional tricks up their sleeves to help get the job done.
Vehicle diagnosis is no walk in the park. Proper diagnosis is critical and difficult, and it shouldn’t be done without doing the work.
Installing an old-fashioned filter on a modern vehicle because that’s what’s in stock may not be the best course of action.
Hordes of man-bunned millennials and newly-minted softroaders probably just picked up their pitchforks and are calling for my blood.