I would never buy a new TV, or any hardware in a very late year. It's almost 2016, so you can tank with what you have now. New toys will be better, and older ones will be even cheaper.
Vizio M 75" from Costco is pretty good for the price. It's just that it doesn't support 4:4:4 for my needs. Next year models should be even better at the same price.
It's time for a Surface Phone. Skylake + option to run full blown Windows 10 = no more having to settle for junky apps from Google Play and App Store. Software in those mobile OS has been in a standstill for quite some time now. It's time to move on to something superior.