I came to EK with the plan to do around 5 years...and after 2 years the bucket for the brown stuff was full!
As a single guy I actually enjoyed the first year...but after I did all the things (desert tours, Oman, Rugby7's, golf, beaching etc.) it became boring and I ended up boozing more than I should. And on top of that I couldn't take any more sh!t from the management and the hypocrites in charge of that sandy s...hole.
I know just a few guys who can cope and live a happy life...the rest are simply there to make some money and plan to get out as soon as they find just something else....
The most important lesson I learned: It's all about quality of life.
Good luck!!