In the end, considering price, the real question is personal. I am not sure moving over makes much sense. Moving up yes. So if you have a piece of gear you are happy with change for change’s sake doesn’t make sense to me especially in Audio.
The most important factor in a good audio system are the synergies among amplifier, speakers and room.
Finally.
We audiophiles tend to get buried in the technology weeds. The key numbers/measurements for amplifiers are those that indicate how they will drive your speakers.(power, current, impedance etc etc etc).The technology or design philosophy that achieves those numbers is at best secondary at worst a red herring. And really what counts is how it all sounds to you.
Wise post.... Thanks....