Pre-launch deals in Whitefield: Still worth the gamble?

Whitefield — I'm looking at a couple of pre-launch projects there. I work in real estate, so I know the builder games. That 'early bird discount', is it even real anymore? Or is it just a way to lock in funds early, then hit you with PLCs later? What's your take on true pre-launch benefits vs. risks in Bangalore projects like Prestige or Sobha?