Whilst certainly you can pay those sort of figures, that info is a bit incorrect. You can obtain new 3 br flats for dhs65k. Villa on the Club noticeboard; Maqta bridge area (which would be ideal for the airport), 3BR pool, tennis court, nice looking, dhs75k. Villas in the best area are certainly expensive, but I think you have to be realistic.
Prospectives should be more concerned about the schooling. If you have kids, it aint pretty. The allowence amounts quoted on this forum for fees won't go anywhere near what you will have to pay (expect double at least), that's if you can get in.