Wow! You guys are amazing, keeping this info on spreadhsheets. I never even thought of that. I just do my "Is it worth it?" on a case by case basis. For instance, last month we flew to Australia on Qantas in business class for 105,000 AA miles each. I wouldn't have flown to Australia in coach and I would not have paid business class full fare, so to me the 105,000 was way worth it.