Ugh, I hate those. I had one recently somewhere between 500 and 550... I didn't request the upgrade because I have a dwindling supply of stickers and didn't find the flight long enough to be worth it. The flight was packed and I was hoping for a cabin roll but no dice. The flight did go out with empty F seats even after the GA moved up employees and even a military member in uniform. I certainly don't begrudge those folks a free upgrade but it's weird that if the flight was <10% shorter AA would have also upgraded me. Oh well...