Abt is my favorite place. The "New" store (~year or so old) is awesome.
They also have a site ( big shock there, huh? )
Abt Electronics
They've been around for decades, outliving box-pushing organizations like ABC Warehouse, Highland Appliance ....
The prices are good, but the SERVICE is second-to-none ... a true "Kill 'em with service" attitude.
Fry's is OK, lots of stuff (Abt doesn't have much in the way of computer stuff), but I don't expect much in the way of service .... I just use 'em for commodity stuff and books.
I believe Fry's started in Texas, then opened stores around silicon Valley, and are spreading from there. The salesperson I talked to said they're looking to open one or two more stores in ChicagoLand in the next year or two (North and central, closer to the city).
FWIW
Scott