I haven't been inside one in a long time. However, we were going out to eat the other night and passed by the parking lot of a BB and it was packed. Not sure what people are doing there, but it probably helps to see TVs rather than ordering them...though, I ordered my last 2 TVs.They can put a Verizon booth in that space....
I have to confess, I haven't been to a Best Buy in ages.
I'm not sure the US needs an electronicsish big box store any longer.
Anything they sell you can get elsewhere without the commissioned sales force.
I do remember a time when I would spend hours in there picking out CDs for my collection, but streaming eliminated that process.