Because there are not too much specialty stores that caters only professional cameras (DSLRs). Mostly camera stores can be found only in malls but they are not specialty stores. You know how mall owners jack-up prices of goods, especially if it comes or imported outside Doha. If you have friends in UAE, you can ask them to buy you one and just shipped it you. Or, there are some people selling DLSRs here in QL. You can search the classified ad here.