That boils down to: If you want to maximize your profit pick a price point where the price x units is the biggest number. e.g. you could sell a million if they cost a dime you get $100k, you could sell 1 if they cost $500k, you get $500k, you can sell 500k if they cost $5, you get $2.5M. $5 seems to be where I???d want to live.