Where would you come back to in Europe after your 5 years in EK? Why not just join them in the first place?
I would suspect that if you go to EK, you would find it hard to leave, being trapped by the lifestyle and the money, or the kids subsidised education. I know a few pilots that have followed the well trodden path to the ME. They hate it but the wives and kids love it. No prizes for guessing who is doing all the work, and who is doing all the living.