Bengaluru property deals: what's the real negotiation truth?

Two years ago I'd have laughed at these prices, but after another rent hike, I'm finally taking the plunge. Everyone glorifies pre-launch deals in Bengaluru, but I'm calling BS. Is there *any* real negotiation left, even on a Prestige project near Sopena Agrahara? People talk about hidden charges at possession, but how much can you *actually* knock off the sticker price for a 2BHK? Are we just paying whatever they ask? Disagree? Tell me why.