Costs. Plain and simple. I did a water pump on a Ferd Five Hundo last week. MY COST at Napa, $142.00. MY COST at the local joint a block away(Auto Value), $182.00. For a fracking water pump!!!!! The same Gates number at **** Auto dot Cum, $82.00, plus tax and shipping. So, $108 to the door. I've been ordering from there A LOT for the last few months. Part of the shop racket is making a couple on parts. Hard to do with the local joints. And that sucks because I'm a firm believer in shop local.