IMO once you have a Denon 3*** - 4*** series or Marantz 7*** - 8*** series, looking at something in the Denon 2's or Marantz 5-6's WILL NOT be comparable sound or build quality .
Even going back a year or 2 for the higher end model of a Denon 3*** or better yet a 4***, same for Marantz go to a 8*** will be a real upgrade.
Video switching, more hdmi, more abc, isn't has important to me as the sound and build quality, and at refurbed prices for last years top or near top of the line for the same price as a entry or mid range new, to me I always will go for what was the higher up the line one.
I also think most people who buy like this are satisfied far longer.