Stay where your at.
This job is not what it used to be and the terms and conditions are continuously eroding. EK has lost it's touch and when your flying 90+ hours a month and your head aches from jet lag, what is an extra $10,000 - $20,000 you might save? Not much for what you have to put up with.
Saving is not really that realistic with the cost of living in Dubai far outreaching any of our annual pay increments. If you chose to live like a troll, eat peanuts and fly like a robot, fill your boots and have at it. Not really what I would call a fun lifestyle.
Dubai has gone downhill and the lifestyle is far from tax free anymore. They tax you at the restaurants, road tolls everywhere you turn it seems like and prices climbing at a weekly rate.