Bengaluru pre-launch pricing: Is it actually a scam?

Since last year I've been looking to upgrade from my 2BHK in Hoodi to a 3BHK, maybe even a Prestige project near Venkateshpura. Everyone says pre-launch is cheaper, but I call BS. Okay I'll say what no one says: pre-launch pricing is a total myth, just a way to lock you in early. By the time possession rolls around, all those "hidden" charges and PLC additions make it more expensive than buying ready, sometimes 10-15% extra. Is anyone actually saving money this way? Change my mind.