Brother got new tires put on today. Cost $600. He does about 20,000 miles a year, so the tires will last for about 3 years. The cost is $16 a month.
So, in trying to save $32, tire wear for two months, he got a blowout and got to change a tire on the shoulder.
I also ran those numbers by him, two months ago.

He is lucky, it was the left rear tire. Had that been a front tire he might have been in a bad wreck.