Our local Lowe's has now locked up all the hand power tools in a cage. You have to take a tool ticket, pay for it, and bring back the receipt before they unlock the cage to give you the tool. It has cut down dramatically on the DeWalts, etc., growing legs and walking out the door.
This is one of my pet peeves, however. If I am in a store to buy something, I often like to look at it up close, and read the boxes to compare different products. And because the thieves ruin it for everybody, much of the stuff I am interested in buying is behind the counter or locked up, and good luck finding someone to unlock the case. The more I encounter this, the more I think I should have just stayed home and taken a chance with an online order.