Ahh, but how much freight did that A380 full of passengers and their baggage carry?
The answer is probably less than 5 tonnes, while the similar B777 could carry 20 tonnes. 15 tonnes more freight revenue is also a lot of money. At 10 dirhams a kilo that would be 150,000 dirhams, at 20 dirhams a kilo it would be 300,000 dirhams. Not sure what EK charges for freight, but I bet 20 dirhams per kilo would be on the low side. This while burning much less fuel.
Typhoonpilot