Aiminghigh,
The advice you are being given, is the exact same advice we gave the majority of the posters before they joined. But what the hey, they still joined.
Be aware that goal posts move all the time here, and rarely in a direction that is good for the pilot.
If you do decide to join, welcome aboard. Can I suggest that you make wherever you decide to live here your home. Those that don't never settle. Don't save every cent you make here at the expense of living life. The middle east is not the place skimp out as if you do there is very little you can do.
Once your children go to school, you will not save much money on an FOs salary. Wife's salary would be your savings.
You have no control over your roster. For example, if you bid for a few days off for a special event, expect the few days off to be given before or after the event, and some totally random duty inserted on the day you needed.
You have no control in your leave. No problem when the wife doesn't work and the kids aren't at school. But can be soul destroying when that is not the case, as the company will allocate some/most of your leave at a time that best suits them, not you. Leave as an FO seems to work better than leave for a Capt.
Command on the Boeing will be reduced to fill those of Capts leaving, as fleet growth has basically stopped. So its going to take a lot longer than the 5.5yrs which the Boeing is running on at the moment.
The route network is great. The fellas you fly with are great. The management are self serving muppets.