Why do the oil companies think we're stupid? [Gas prices ending in 9/10]

I pay 2 or 3 cents a litre more than the station across the street for two reasons: first the one I go to is serviced; but most importantly, it is a service station where I have my car serviced, change to/from snow tires, etc. and they treat me well and I don’t want them to see me across the street.

Here is a compendium of Straight Dope discussion on this:

Unofficial GQ FAQ

I’ve always looked at that as an age thing. My nonagenarian mother and her retirement home friends will go on and on (and on) comparing gas price rumors:

“Well, Millie swears she found two twenty-nine nine at a gas station in Prescott.”
“Oh, I bet she means Churchill’s. They’re occasionally the cheapest, but sometimes Ptacek’s beats them by a penny.”
“Ptacek’s always has those amish puffy rolls. My aunt loved thos…”
“Churchill’s was NEVER two twenty-nine nine! They’re never as cheap as the Kwik Trip across the river. Two twenty-nine nine… that Millie…

Keep in mind these stations are at least an hour’s drive away from where these ladies live. Are they really road tripping to save less than a buck?