Sector 90: My first property reality check

Visited a couple of projects in Sector 90 last weekend, like Godrej Habitat and Tata Primanti. Honestly, a 3BHK for ₹1.8 Cr+ felt high. Not sure if these prices are justified for an area that's still developing. My parents keep saying wait for more infrastructure, especially with Dwarka Expressway still completing. Also, monsoon mein waterlogging ka kya scene rehta hai yahan? I saw some old pictures; drainage quality seems like a concern. Aur nearby schools, like GD Goenka ya Pathways, kitni door hain? Admission difficulty and quality ka bhi idea nahi. Is there any real negotiation room on these prices, ya builders apni marzi chala rahe hain? Koi hidden costs bhi hote hain kya? Hope someone living there can share their real experience.