20 years ago, there was only one AAP within 15 miles of my home. I was already a dedicated Rock Auto customer, but when I needed something immediately, I usually dealt with them. There are now four AAP stores in that radius, including one that opened last year.
Until 5 years ago, there was one last independent parts store and a very good place to go. It even had an attached machine shop at one time, like most of them did. The owners sold to open a small food mart. A NAPA store took their place and was closed within 3 years. It didn't help that they were only 4 miles from a long-established NAPA.