[brudgers]

The poor stand in the paper products aisle calculating the relative value of one multi-pack of toilet paper versus another. While a person with money might look and decide one is too expensive, it's not an optimization problem. There's not pressure to get it right. The cost of a mistake is rounding error not a meal.

[Broken_Hippo]

Or buy the 4-pack because they literally can't afford 12 rolls - even though they know it is more expensive.