God luv ya, man... always the optimist!

I had to put 6 12x22.5 tires on my old RV and switched the steer axle to the drag axle as those from the front were only 3 years old. Not a pleasant day as those things are almost $500 a pop. And the bad part was there was lots of tread left on the 10 year old tires. I just did not trust the old tires with 120lbs of pressure.
I am not sold on nitrogen as the atmosphere is 80% so we are only gaining about 20%.

Sounded high to me too but it wasn't my van and it had to be fixed at the dealer. That dealership was a rip-off, in my book.

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You're shy a few manners.

Wife's '14 Subaru has a low pressure warning. It malfunctions all the time, has since new. She takes it to the stealership for service and they claim they "fix" it but I keep telling her they're just clearing the code.

No guarantees in life. Once on a school trip, driving a 14 passenger Dodge van loaded to the gunnels with other people's children I had TWO catastrophic failures on brand new Bridgestone tires within a hundred miles. What are the odds? I took the van to Costco and with a school credit card put 4 new Michelins plus a spare on the vehicle, then I bought all the kids pizza slices. The district superintendent considered calling me on the carpet for unauthorized expenses, but one look at me and she re-considered.

By the way, the air you're breathing at the moment is 78% nitrogen; the vast majority, so......