Siddhartha Vihar pre-launch: My 'early bird' doubts

Siddhartha Vihar keeps coming up every time I shortlist something. I'm looking at a 3BHK, maybe around ₹90L, considering current Ghaziabad prices. Saw a pre-launch offer from Gaurs there, seems tempting on paper. But honestly, from my experience, these 'early bird' discounts often get eaten up by PLCs or higher floor charges later. My last buy in Indirapuram, the initial savings weren't that significant in the end. The data shows Ghaziabad's appreciation is steady, especially with the Metro Red Line extension. Is taking a pre-launch risk still worth it for ROI compared to ready-to-move units? Not sure if that 'discount' is truly a discount anymore. What are others' recent experiences with pre-launch projects in Crossings Republik or Raj Nagar Extension? Did you find the calculated risk paid off, or was it just a longer wait for minimal gain?