QR 8000 per month for a shop is a cheap rent in Doha as a 2BHK residence has more than the said rent. I believe that those old buildings in city are supposed to be demolished and reconstructed in new fashion that will bring new look to the city. Qatar is a growing economy and every business man should be flexible and adaptable to new changes. Those who are vacating their shops should never give up but keep looking for a good space in the market. Change is a global phenomenon. All the very best!!