From my youth, I recall electronics stores where you would pick out what you wanted, and take a ticket to the register. You would pay at the register and be given a receipt. Then you would take the receipt to another station and they would check it, call your item in to the stock room, and the item would show up on a conveyer belt a few minutes later. Then they would stamp your receipt, hand you your item, and you’d be on your way.
In this way, the store gets to control its merchandise without subjecting its customers to the indignity of having their receipts checked at the door as if they are suspected criminals.
Really the difference between that sort of system and Circuit City’s system is that Circuity City is enlisting its customers to transport their goods within the store. Which saves money for Circuit City, but I suppose Circuit City would say that a lot of those savings are passed on to customers in the form of lower prices.
Which is probably true. Consumer electronics is super competitive and that puts pressure on companies like Circuit City to save money wherever possible. For a little extra money, you can probably find an electronics store where your receipt won’t be checked.
Personally, I shop at Staples and nobody has checked my receipt since I was 16 years old. (Which was pretty insulting, since the store manager obviously assumed that young = thief. )