Actually, mileage upgrades have received a HUGE devaluation because the upgrade fee doesn't count for PQD, which means while you're HALF paying for a business ticket, you're getting zero PQD credit for it.

Not good that your PQD balance can be drastically different based on whether you book a higher M fare and upgrade with miles or a lower L fare and upgrade with miles. Same expense, UA just shafts you on PQD for not playing the upgrade lottery if your upgrade has to waitlist.