I was going to get two new tires for my 91 Accord at Costco. They will
only mount new tires on the rear if you only get two. Apparently a
study tells them that the better tires should be on the rear to
prevent fishtailing. Odd, I would think that the front would be
better, having the steering, power, and brakes. So which is better?

I decided my tires are good enough for a while longer and left. I had
gotten a flat and decided that maybe I should just get new tires.
Oddly, the place I went to to fix the flat (Costco would only fix
flats on their tires!) couldn't find a hole. I must have bumped a curb
or something and caused the leak.