Our local fuel prices just went up again!

Speaking of fuel prices, I was just checking Airnav to see what kinds of
savings I might get if I bought fuel off my own airport. It may not make
sense economically, but prices are getting high enough that I'm just plain
offended at wide disparities.

I found a few airports with significantly lower prices than that found at
Paine Field (KPAE). One is Oak Harbor, where the fuel is even 25 cents less
expensive than other neighboring "cheap" fuel locations. $2.55/gal for
100LL at the last reported time.

Anyone know any caveats about buying fuel there? Is it cheap just because
they want to attract the business? Or is there something "wrong" with it?

For the record, other relatively cheap fuel in the Puget Sound area appears
to be Thun Field in Puyallup (I can confirm, having just bought fuel there a
couple of weeks ago), Tacoma Narrows in Gig Harbor, and Jefferson County in
Port Townsend. They're all selling 100LL for under $3.00/gal.

Pete