They pushed them that far! Ho-lee-shit! They must be super shoppers! Most shoppers are so f'n lazy, they can't even find the cart corral to return them at the store (pretty much EVERY WallyWorld in Las Vegas)... They push it around in the store for 45 min or more, but can't push it another 25-50 feet to damn cart corral to put it away. Just leave it in the parking lot 2 feet from their car in the middle of a parking space, or stick in the landscaping...
I have a solution for this. Build racks that you have to put .25 cents into to get the cart when you first get to the store. When you return the cart after shopping, you get the .25 cents back. Kids, homeless (remember when they where bums and panhandlers? When did they get a new title?), and just about anyone who wants .25 cents will put the carts back just to get the money if some lazy ass leaves it sitting in the parking lot.
The initial cost of the rack for this, and the retro fitting of the current carts and new carts would not be cheap, but the store likely wouldn't have to send someone out constantly to retrieve 50+ carts at a time, and it would also cut down on injuries employees sustain trying to push 50+ carts backing to the store, or slip/fall injuries while retrieving them, so it would pay for it's self in no time....