I have been a cashier. I prefer the self checks. I can ring and bag my own faster than most cashiers. Also on the bad side self checks take away cashiers jobs. What store wouldnt want to pay 1 cashier for running 3 or more registers then having to pay a cashier for each register. I will tell you being a cashier is not a easy job. You get blamed for everything that happens in the store from too many carts in the parking lot to the prices and everything inbetween.