when u come in PT see always only the shops where u are and a little left and right.
Example: u go to public town 1 and come out at Hanger so u see shops between Gear-lab and Shop and no more. Go u now to public town 2 and then back to public town 1 and come out at the factory u see shops Dealer and shop. All the shops that was at Gear-lab are now away!!!