Pre-launch pricing is mostly a marketing gimmick

Kya pre-launch deals mein sach mein discount milta hai ya bas hype hai? I'm looking at Keya Homes near Nayandahalli, but can't do site visits from Dubai. Builder bolta hai pre-launch mein best rates milenge. Is that true, or later bhi negotiate kar sakte hain? Also, super area aur carpet area ka kya scene hai? Builders inflate karte hain kya numbers? Any specific areas in Bangalore where value abhi bhi mil sakti hai for investment? Remote se deal karna mushkil lag raha hai.