Noida pre-launch pricing: real discount or just marketing?

Did some online research on Highflown Buildcon in Sector 122. I'm based in Dubai, can't visit easily. They're offering pre-launch pricing on a 2BHK. Kya early-bird discount actually worth it hota hai, ya builder baad mein bhi similar spot discounts dete hain? How to read their no-price-drop policy? Is it just marketing?