[algore]

I will often replace 2 tires, it just depends on circumstances.

for example I might buy 4 new tires for fwd car, I will drive till the fronts are worn out and then rotate the rears which have almost no wear to the front and put the new tires on the rear and repeat till car is totaled.

or more likely wait till the fronts are 1/2 tread and rotate them to the rear and put the non worn rear tires on the front drive till they are worn and put new ones on the front.

I am sure there are lots of people who do the same.

[LambSlave]

I do the same; I think it’s not uncommon.

[HartleyMBaldwin]

I usually buy two at a time. The driving wheels wear out tires faster. I don’t rotate tires; I figure they rotate plenty while I’m driving. In my broke younger days, I’d buy one used tire whenever I absolutely had to.

[waterhill]

I do too.