Because there is nothing available.
There's ALWAYS something available - turnover of staff is high in the middle east - it's not everyone's cup of tea. Many only stay for a few years then go off to greener pastures (literally!) or home.
Biggest opportunity at the moment is probably Doha - new airport almost finished and 60 or so Radar bods needed (last I heard). If the rumours I've heard are true, new package isn't bad either......
What's to lose by asking / having a look?