I just priced out two reward tickets for a return trip YYZ-DXB next spring. I wanted to compare redemption levels and costs for business versus economy. The difference in points I can understand (160,000 for two Y, 270,000 for two J), but the taxes, fees, and surcharges defy logic. How does AC justify charging $1,439.72 on the Y ticket, and $822.72 on the J? A big difference is in the fuel surcharge - why does an economy passenger get hit with a higher (double) fuel surcharge compared to a business class passenger?