Pre-launch deals in Noida Ext: Is the discount real for investors?

₹90 lakh for a 2BHK in Noida Extension, pre-launch offer, sounds tempting. I work in real estate, but buying for myself feels different, yaar. Builders like Living Homes often push these early deals. Is that pre-launch discount *really* a discount, ya it's just marketing? And for an investor, is a construction-linked plan better than a down payment scheme for better leverage? Also, secondary market mein kya negotiation scope zyada milta hai compared to new projects near Yamuna Expressway? Kya lagta hai?