My T758v3 was bought in November of 2015 as a "Factory Refurbished" T758. Over the years I've added the V130 MDC module to get 4k video, the BluOS kit to get streaming, and the AM230 module to get Atmos & Dirac Live.
All in, it's cost me $120 more than what a T758v3 costs new, but it's cheaper than buying new AVR's every couple years to get new features. Last spend was almost 3 years ago now, and it's been stone reliable. Warranty is a fading memory.
Still somehow, I'm very happy with it.