Oh, they have plenty of time to do it. We have created lots of MBAs...people who want to take advantage of their education, and to do so they want to squeeze a little more profit. And they're bored. And they need to stand out from their coworkers. Therefore 'price per net weight' becomes a thing. And Surge pricing.

(Peanutbutter M&Ms are an egregious example...the share bag price varies 20% depending on the calendar, as does Hilshire Farm Kielbasa...which now comes in 14 oz packages...which is a choice and means a family of 4 needs to buy two of them now to make a meal.)