Yes, I buy stuff over the internet! (which is usually hundreds of dollars.)
However, I always give my LBS a shot at beating their price, matching it, or getting "close enuf." They also get any mechanical work that I am not willing or qualified to do. (I don't do wheels, because the chief mechanic at my LBS is a wizard.)
It's amazing how often the LBS can be competitive......... and they get all the business I can give them. (which is usually hundreds of dollars)
My priority is still me, however! It's usually how much I am willing to take out of my pocket, for ANY given item. (And my LBS understands that)