FMF: "Why I Pay More to Go to a Car Dealer for Service Work"
Since I work at a dealership service department, this is a topic that's near to my heart.
Folks browbeat dealers on service pricing constantly. Usually, they have good reason. Some of our services ARE pricey; there's no getting around that.
However, my dealership offers the same "amenities" as those offered by FMF's dealership (free wireless internet, big-screen TV, free coffee and such). Our oil changes are a notch over $28, though, as opposed to his $34.95. (We try to keep our maintenance services competitive with local quick-change shops and dealers in our area. As far as I know, the cheapest oil change around here is ~$20; the most expensive, ~$38.)
What most people don't know, though, is that you can bring your own parts, and we'll be happy to use those rather than the ones we'd provide. In this way, for your oil change, you'd be paying only $12 (labor) plus the cost of whatever parts / supplies you bought at Wal-Mart (or wherever). Do it this way, and you get all the neat dealership "benefits" ... and saved yourself probably $6-$10 at least.
Just a helpful tip for anyone out there who wants to use their dealership for maintenance services, but cringes at the maintenance prices. Bring your own parts, and save yourself substantial money.