Booked 2 tickets (SMF-MEX-EZE-MEX-GDL-SMF) 2-14Dec $3200
Had to pay $50x2 for plus seat from GDL to SMF. Seems well worth it, in particular cuz got a J class tickets which seem to get 200% MQM for Delta! And spending 4 days in MEX on the outbound leg.
Thanks all for the heads up on this one!