In all seriousness, my dad was a mechanic, and he’d buy HF air impact guns instead of Mac or Matco or Snap-On. The nice ones cost four to six times as much, and needed to be serviced about every 18 months, during which time he was down a gun.

So he’d buy two or three HF guns, use one till it broke in six months, switch to another, replenish stock at his convenience.