Earlier quoted context omitted.
Wait, the machines charge you higher prices? Where do you live? I don't think I've ever heard of this.
Rather, you don't get a discount for using the self-checkout. The price you are paying has the cost of a human cashier built into it. If you use self-checkout, you're providing that service yourself for free, but the company still collects the premium they charge for human service.
> The price you are paying has the cost of a human cashier built into it. If you use self-checkout, you're providing that service yourself for free
While true, this is kind of a bizarre way to look at it; you should only be using the service if you prefer it to human checkout, in which case the fact that their costs are lower is irrelevant. It basically just means that both you and the company are both benefiting.
One may as well say "I always make sure to use the bathroom when I go to the grocery store. If I don't, the company still collects the premium they charge for providing a bathroom". And yet if you'd rather not go to the bathroom, the premium they charge has nothing to do with your decision making process.