Agreed, the TPMS system will not last forever. The batteries in the sensors have a limited lifespan. When it's not the battery that dies it could be a damaged sensor, a missing sensors or an interference that will cause a warning light to come on. Wether you run racing tires, mud tires or simply change from summer to winter tires the TPMS delete module allows you to simulate the original signals.
When paired with the truck the onboard computer will only take the reading from the module. It can be used as a temporary fix for one or all sensors or as a permanent solution.
If you're not a fan of the fancy shmancy electronic systems and prefer the good old tire gauge the unit is available here:
http://www.ebay.ca/itm/TPMS-Delete-Emulator-Simulator-for-Buick-Cadillac-Chevy-GMC-Pontiac-SAAB-Saturn-/162372608080?ssPageName=STRK:MESE:IT