Movies theatre popcorn pricing employs some very sophisticated strategies that are worth looking at.
A recent Indiegogo campaign does a great job of using discounting and decoy pricing to increase the number of units sold.
Diminishing marginal utility, and pricing to account for it, becomes very simple when you think about the enjoyment you get from something like fresh brownies.
Not every volume buyer is only interested in the total volume. Smart pricing recognizes what each type of buyer values and adjusts accordingly.
Veblen goods contradict the law of demand. Demand for a Veblen good increases, rather than decreases, alongside increases in price.