Some nerds out there (here?) have been looking up RA's return addresses from received packages and reverse engineering their system.Correct. I didn't know if that was known in the community....I have been inside due to my employer.
I literally saw a Carquest branding on a RA picture of a "famous brand" part, along with the disclaimer that "it's probably someone you know", LOL.
As far as I'm concerned, Rockauto is a parallel distribution arm, and an undisguised blessing. They don't look at OR/AZ/AA/NAPA and undercut by 5%, they charge what a part is "worth" plus actual shipping.