I'm flying SFO to SEA in June (booked the flight in February, before the March 19 changes to baggage charges). If I upgrade at OLCI to 1st (from Main Cabin) for $50 I appear to get 2 checked bags free of charge. My 2nd bag was going to cost me $25 - so... I get to fly first class for $25 more than if I stay in Main Cabin. This can't be true - can it? Has to be a bargain even for a 2 hour flight.