Metro hype: prices already too high near SPR?

Visited a few projects near SPR last weekend, looking for a 3BHK upgrade from my 2BHK in Sector 57. Gurugram Metro extension kaafi hype mein hai, especially along SPR. Builders like M3M and Godrej properties wahan projects dikha rahe hain. Log bolte hain metro connectivity se prices jump honge, but I'm not sure if the current premium for properties near proposed stations is justified already. Also, Cyber City extension ya Global City ka impact kitna real hai? Kya yeh sirf builder marketing hai ya actual demand badhegi? Already have a home loan, so har paisa count karta hai.