As a rather casual runner, stores like this put me off. I'm not training for a million K race and I don't see the benefit of buying all the ultra equipment just to give myself that small edge.
That being said, this store will have my business for years to come. I went in after again having problems finding a running shoe that fit. I'm 6'6" and have odd sized feet for such a big guy. I often buy a size that is too small and tight or too large and loose. Turns out I needed a 12.5 4E size running shoe. The young lady who brought me out one put it on and I was instantly in love.
Normally I'd of stopped right here. Again I don't need all the extra stuff and normally can't see the benefit. The young lady I talked to (upset that I forgot her name btw) explained the benefits of an insole and let me try a few. She also showed me all the running socks and explained their options.
Got a pair of shoes that fit, make my running experience far better, and did it with professional guidance that didn't cost me a dime extra. If you're a big guy and have odd sized needs, hit this store up.