NOV 4 YVR-DXB bid upgrade from K to J $1500 denied. Able to obtain LMU for $2145. If i recall there were 4 open seats at T-24 - no offer for PY
Nov 12 DXB-YVR bid upgrade from K to J $1800 denied. Success with LMU for the same $2145 with 3 open seats at T-24, lots of seats for PY offered with LMU offered at $683

this is a 15/16 hr flight so thought worth it to to move to J. the purchase price at T-48 was $9k YVVR-DXB and $5k DXB-YVR and we paid $6k round trip (including second leg from DXB to MLE). I wish I remembered what the J purchase price was 2 months ago when we booked the K ticket so I can feel better about the cost of these upgrades!!