[ThatAdamGuy]

Hey solve, I thought the exact same thing you did! But then -- as someone who recently joined the Google Flights team -- I helped lead some research that included this topic... and was honestly surprised to find that about 40% of the folks searching on Google Flights DON'T pick the cheapest flight.

Price, certainly, is still a huge factor in folks' decision, but convenience plays a very significant role. And, from anecdotal evidence (not part of the same research), brand loyalty is definitely a factor as well (a very price sensitive travel blogger I know still prefers to fly on American, for instance).