True, but it also tells you about the budget of the stores in the area. A significant factor is also whether the local areas uses salt on the roads or not. Th

True, but it also tells you about the budget of the stores in the area. A significant factor is also whether the local areas uses salt on the roads or not. There are at least N failure modes for shopping carts: * shopping cart wheels not coplanar * shopping cart wheel does not turn * shopping cart left in parking lot during weather * shopping cart removed from parking lot entirely