Ok let me break this down and build a constructive argument to make my points clear as I beg to differ and completely disagree with you M Tahir and IS.
First of all, you cannot compare new airport societies with old airport due to location, road, development of the societies and the brand type. You mention that Airport Society sector 4 prices are cheap, yes of course they are. This is no surprise as even though facilities maybe intact, however, development is pretty poor. I would prefer PWD. Clearly, if they had a good repute they would not need to use STAR Marketing PVT LTD. They used STAR Marketing and as you know when SM are used, they over price the booking to make their own commission. When SM disappeared in the sunset, people had seen whats actually on ground and prices adjusted to correct market value!
After reading the comments of other expert contributors we all agree that Mumtaz City, which is also a private society has excellent development standards. They were not just handed over an award for best infrastructure for nothing....clearly they must have done something right to get that award! Development is something special especially in that area, of course it would be as they MCC are developing it themselves anyway! Whether its worth such money is questionable? Some say its worth it, some say its worth living there due to development standards some say its not?
Top City has always been favoured by investors due to close proximity, road access is a lot better than Airport Society sector 4. Now that road access will cut through TC, will benefit it even more, so I don't see absolute no logic in your comments as development is in full swing and prices are same as Airport Society and yet AS is developed. If TC can make the development standards just as good as ECHS or something similar then they prices on 10 marla plots are likely to go over crore as already prices are fairly high in A block! There is still plenty of juice left to extract from TC, as development is on going and at good pace. Prices are next likely to rise when development of road access to airport begins and then when airport becomes functional! Prices on TC are already on around 14 lakhs for 10 marla so why will prices stay stagnant now? Your comments M Tahir don't make any sense, and I see no logic! No hard feelings!