Couldn't agree more, but when your mileage plan charges 5k more to go from Business to First, why not? (Haha you see the exploit there, their pricing table makes no sense). And 3 years ago, American had a glitch for a few hours on our country, instead of multiplying the fare USD x our currency, they were dividing, so we could travel in first RT GRU-DFW-GRU for like $150 along with other routes.
I'm from Rio, but I usually go to GRU first because of availibility and also because all flights with "First" to the US depart from GRU only. GRU also has some insane deals if you have Priority Pass or Lounge Key, like giving you $50 to spend at restaurants, etc.
Hope you don't crash and burn like all the cars crashing lately. Get real dude. (I'm also a student pilot by the way

).