You buy a house, Get a loan for 25 years, you stay with Qatar and the rules don't change, you will get QR12,000 as a captain and QR10,000 as a First officer.
Lets just say QR12,000 so as not to think you will be a first officer for 25 years. You will get the QR12,000 a month until the rules change and Qatar Airways builds a huge "Saudi City" type complex and says "All expats here is your house, take it or leave it." "there will be no more housing allowance, Vehicle allowance and electricity allowance." You are now on your own to enjoy your 2 million U.S Dollar apartment on the Pearl or sell it and move to the company housing.
It will change here and you really have to kind of look at every avenue and see what is good for you. Some have bought apartments, some are living in company apartments and villas, and then some are sharing a villa. I think you will only find a few who live in a villa alone paying for it out of their pocket. That number is getting smaller every year with increase of rental prices and having to bear the maintenance cost yourself.
It is still a good place to come and work if you are open minded and like a nice simple life. Very easy to come here and relax but it is also easy to come here and complain about every road problem and cost of a shwarma.
Your choice.
HM
