It might be a regional thing. As someone who's been in more than one region shopping for car parts, I can tell you that the NAPA in Naperville, IL will give me much different (better) results than the NAPA/shack in Leesville, LA. <img src="/forums/images/graemlins/frown.gif" alt="" />
Also keep in mind that, nowadays, talking to the guy across the parts counter is like talking to a turtle.