Earlier quoted context omitted.
There's nobody guarding the doors at the average grocery store. You can walk in and walk out with a steak without anyone stopping you, and without having to buy prepaid debit cards and make online accounts in advance. Far fewer tracks to cover. They also don't have every square inch of the store covered in face-detecting cameras, like Amazon's store, making pretty much anywhere else a better target once you're set on…
Wow, you are unfamiliar with retail. Sure, you can probably steal small things, but repeatedly stealing larger objects (book size and above) is generally a pain in the ass. Hence why Costco & Sams Club make better targets than average stores, its much easier to throw something in the cart of high value and slip it by. Booster bags will be a major issue for Amazon's stores if they ever launch this.
That was unnecessary.
> Booster bags will be a major issue for Amazon's stores
None of the products in Amazon's stores carry any kind of tag, so there's nothing for a booster bag to block.
They're using computer vision to identify when a customer takes a product off a shelf, or puts a product back on the shelf. That customer's virtual cart is updated in turn, and charged after the customer leaves the store. The people are what's being tracked going in and out, not the products.