Originally Posted by
IAH-OIL-TRASH
MP rules state award mileage earnings are based on base airfare. A paid upgrade (vs upfare) is not part of the base airfare. The upgrade money does get PQPs, as you note.
More to the point, the T&C for the upgrades state pretty clearly that you won’t earn MileagePlus miles for the purchase. It’s part of the trade-off for what are occasionally quite highly discounted offers.