The high rental of Dubai real estate for tenants is a minus. And for investors is a big plus, because this means high annual yield.
The objective criterion for determining the high cost of lease is the ratio of its value to the price of real estate. Namely, the answer to the question: how many years you need to rent an apartment to buy it.
In Dubai, this indicator is 10 years (in reality rather than 12 years), and in large European cities 25-30+ years.