I do NOT understand the predeliction to replace non-essential parts before they fail. Falls in the same bracket as changing out rad hoses and belts that are perfectly fine.
These could easily last 10 to 20 years, and have in many cases. If they quit, so what, use a tire guage. These are not operationally critical systems. The cost to mount and dismount 4 tires is next to nothing. Why spend a bunch of money before you need to?
I saw a game show recently were 4 out of 4 contestants did not know that 10W-30 is engine oil, even though the question category was cars. Not much wonder dealers and repair shops feel free to butt frack customers with impunity.