I like to know my tire pressure as I'm riding but am much more concerned about knowing if one of my tires has a leak.
I should have said "knowing if one of my tires has developed a leak during a ride". I "used" to check my tires before each ride. I now simply glance at the TPMS.I ALWAYS check my tires before EVERY ride - the same way truckers do - by "thumping" the tires w/ a mallet, and every few weeks I'll check them w/ a gauge and re-fill as necessary (which AIN'T often...!).