My 2BHK upgrade: Navigating hidden costs and deals.

Budget finalised, loan pre-approved – now stuck on which sector to choose for upgrading from my 2BHK. I'm looking at 3BHKs in Noida Extension, especially around Sector 74A. Builders like Nitishree have options. My main question is about maximizing investment value. Is the floor-rise premium and PLC actually worth it for long-term ROI, or just an inflated cost? Also, should I strongly consider secondary market deals? Can you get better negotiation there compared to new projects directly from builders? What's your experience?