lol - I hear that....But I believe I might have reached my "ears limit" with this AVR and my B&W 705 S2 that I bought recently... Hopefully...
Only reason I left the Denon 5700 for the 3808 was "gotta have HDMI".
The move to the 3300 was driven by "gotta have 4k".
This move to the SR8012 was for "gotta spend a weekend on a ladder screwing speakers to the ceiling and running/hiding wires" (Atmos / DTS:X).
And the decision to 'while I'm at it' get back to a "no compromise" (within my means) level of quality.
Luckily, I can (I am convinced I can) hear the sonic superiority of the Marantz SR8012 over the Denon X3300W.
But, nope, will never again need a better unit.