Shiv N Sai's pre-launch offers: Not what they seemed.

Visited Shiv N Sai's new project near Tilak Nagar last week. Pre-launch mein kuch aur dikha rahe the, but now the final 3BHK all-in cost, including stamp duty and PLC, seems similar to ready-to-move. Is early-bird discount just marketing? Meri calculation mein ROI kam ho raha hai. Anyone else felt this with new Delhi projects?