Experion deal: did I miss the negotiation window?

Is it just me or is negotiating in Gurgaon super tough right now? Just bought a 3BHK in Sector 99A from Experion a few months back. Honestly, I tried to push for a better deal, maybe 5-7% off the quoted price. The builder didn't budge much, barely 1-2% on the base price. Is this normal now? I felt like the pre-launch offers were way better for capital appreciation. Someone told me secondary market deals might offer more wiggle room, especially for under-construction properties where owners just want out. Did anyone manage a decent discount on a resale flat recently? Or is the current market too hot for real negotiation? Trying to understand if I missed out by not buying earlier or through secondary. Hope someone has tips for future investments. What's the real story with negotiation limits here?