My 3BHK upgrade dilemma: are pre-launch prices real?

Pre-launch deals in Noida Extension often feel like a trap, honestly. I'm in a 2BHK near Alpha II, thinking of upgrading to a 3BHK. Is the premium for a bigger unit really justified with Jewar Airport's hype? Kya kisi ko actual discount mila hai pre-launch mein, ya bas marketing hai? Already have a home loan, so budget tight. Confused about this price jump.