Seems to be a pattern among all products I’ve ever encountered. I’m a heavy sales shopper. My local grocer (Ingles) will do a promo for Sargento cheese or Chobani yoghurt for instance, normal price of 5$ let’s say, then drop it to $2 for a week, then to $4 the next week, then back to full price. This rinses and repeats every 2 or 3 months for most sales products.

Sadly for this RedBull drinker, they never go on sale, at all, ever, anywhere.