I don't plan on doing 1440p gaming. I plan on doing triple 1080p monitor gaming as I believe to be be more immersive than 1440p gaming. Either that or 4K gaming but a 27 inches 4K would be too small and I read that you don't really experience 4K with any monitor less than 32 inches. I may be wrong though.
My budget for my next PC build would be around 2 grand. Even though I own both consoles I'm definitely building a nice PC to play games like Star Citizen. Hopefully it is Epic. Right now my feeling is that 1440p is too middle of the road but you are right 1080p monitor are overprice for what they are. If the Pascal GPU can handle 4K with at least 60fps, then I'll forgo my triple monitoring setup (cause Nvidia Surround suck) and go 4K gaming altogether which might be the smart choice right now. I cannot run 1080p game on native resolution with 1440p.
Thank you for your view, it has made me rethink my decision. I just don't know if I want to forgo my dream of triple monitoring gaming even at 1080p.
Edit: What is your setup like?