Both Performance and Trek stores exist here in Naperville. I always go to LBS first, and one just recently closed down (Bike Line). I go to Perf for their selection of stuff you need to try on (clothes, helmets, shoes, etc) because the LBS's never seem to have a good selection. But for big items (roof and hitch racks mostly) I always take my business to LBS. I want them to survive. I do all my own maintenance and bike builds and buy most stuff online (love Amazon Prime), so my dealings are mostly with the store workers in back for a certain bolt or tool or such (when I need it immediately). LBS are so much better for that but I have also had Perf guys give me stuff from their junk drawers.

I've often dreamed of operating a small bike shop (coffee shop or ale house connected to it would also be cool) but I know it's not a money maker and couldn't easily support good workers. If I were to come into some significant money I would consider opening such a shop and operating at a loss. Essentially a retirement hobby. But I also would not want to undercut or compete with other LBS's who are trying to survive. Hmmm.