you are thinking logically, based on options that were presented to you.
what you are missing is that, the prices and feature set were setup specifically to compel you to go for the one sold at a higher price if you only wanted to buy one of them.
walmart works the same way,some items are below market value and are placed at the beginning of the section and somewhere deep into the section, items are at and at time above market prices.
Some items are sold at a loss but are on the self not to be sold, but to compel shoppers to go for the more expensive alternative of the same brand.All they do is add more features to the one with cheaper price and then increase the price marginally in a such a way to make it seem like going for a more expensive one is a bargain.This is what happen with the price points you showed.
Its clever marketing,was just pointing that out.
Keep this in mind when you go to buy toothpaste,or toothbrush or toilet paper or paper napkin or a soap or cereal or anything where you see an unnecessarily large number of alternatives from the same company and each only differ slightly in price