Some the variables should be illegal, though. A seat should cost the same whether I'm buying it from my computer in California or Lima, Peru. And the kind of travel hacking that allows someone to purchase 100k points to buy a seat using points for less than it would cost to purchase the same seat with cash should also be regulated away.

A 2-dimensional search is much easier to navigate than a 4-dimensional search. Aggregators have searches based on flexible dates. And they could combine them with Camelizer-style watching of fares to alert people when they get cheaper as well as providing historical averages. But as soon as you start throwing in more variables, it stops being possible to make sense of it all.

But also:

> if there’s 10 available seats left and 8 suddenly booked why should the last ones be priced the same

You could say the same about any product. What if a grocery store applied the same policy when it came to milk? What if Apple charged more for iPhones when a store was running low? What if a gas station charged more based on the level of their storage tanks? You don't think there'd be outrage if we started to see these airline pricing practices seep into the larger market?