Interesting discussion. I just booked a trip to HKG. Our corporate travel site would only allow T fare purchase. As an exec, I can book directly on an airline for International travel, so I booked T+ for about $300 more each way, and my flight looks good for the UG. My engineers that travel TPAC are all booking on United, as they want all their status miles. Interestingly, the flight is booking pretty full though, so maybe AC has the right idea commercially. Time will tell.