We don't have any big box stores around here selling Stihl as far as I know. We have a couple of good Stihl dealers nearby, Amicks and Triad Outdoor Equipment (I think that is their name, never paid attention to the sign) Both of them have always done right by me and gone out of their way to help me, whether I was buying a $2 flywheel key or a $1500 saw, so I shop with them when possible, whether they are a little more or less on price.
The local John Deere dealer, James River, has gotten crappy and been high on prices over the last 6-8 years, so I won't deal with them anymore. There are other John Deere dealers a couple of counties over that give good support and service, and have good prices, as well as a New Holland dealer that sells Stihl. I would happily deal with them if I didn't already have a good relationship with a good loca dealer