Trunk Slammer,
I don't know where you are based but I have lost biz to Compusa....A big builder!
All Comp did was give him stuff to get in the door.
Will he be back??
I bet he will
But he may also decide that A/V is a pain and his clients don't need it.

Every business model starts small than it become big box.

Where did all the Mom & Pop Funiture stores, Pharmacys,Gas Stations,Clothing Store, and Resturants go????
Until you have been hit in the pocket you won't understand.