Have to agree with Wiz. To fluctuate, things have to go down as well as up, and to date, rents have certainly not done that. All that's varied is the steepness of the upcurve.
A lot of people who got in early have done very well in the Dubai real estate market, but the prices people are paying now for what in many cases are pretty ordinary apartments and villas, in my opinion, are unsustainable.