Ahh. Hadn't considered that one, Brett.
With this newer RV, I'm wondering how much longer I can be driving the 7,300 miles per year I have been. I put 87,000 miles on my last RV. On the one hand, I'm older. On the other, this RV is so much easier to drive, more comfortable, quieter, peppier, easier to heat and cool, etc., that I'm thinking maybe another 8 years. And if I'm going to do that, I want to save money on tires.
On my last RV, I wore out 3 steer sets and 2 drive sets of 19.5 tires over 12 years. Over those years, had one tire replaced due to sidewall damage, and one tire replaced due to split casing between threads...only blowout I had over those 12 years. The replacements I did were due to the tires being worn down to much for my liking.