I run Nitrogen in my work van, wife's car, my truck, and my bike, and any one else's.
I keep 2 60s and 2 40s in my van, it costs 12 bucks to swap out the 40s, and 14 for the 60s at the supply house.
I also use the nitrogen in my air tools. It was great running the air nailer in the house, WITHOUT the compressor...
Anyway, worth it for stable pressures? If your paying that much for it, no, not at all..
In my case, I have it on hand, and use it for a lot of stuff, so, yes. Its a stable, dry, inert gas.
My 2 cents,