back in the days before I realized that meant I could’ve also just bought 1 for $1.
But I bought 10. I’ve kept excellent track of them through the years, moving residences 5+ times and traveling across the country,and I still have two lip balms left from that senile purchase decision.
https://en.wikipedia.org/wiki/Dark_pattern
This would fall under misdirection, where they imply a minimum number required for the discount such as 10 for $10 by using the same wording as when there is a minimum.