I really think that my next buy will be a class AB amp, because of the maintenance issues.
It's a matter of choice.
In my opinion, a modern audio system consists of several key components: streamer -> DSP (ideally with SUB management, for many, room correction is desirable) -> DAC -> volume control/preamp -> amp.
Whatever we choose,
some of this stuff will have difficult to repair modules. I have experience with repairing of an expensive DAC, and everything is no easier there than with amplifiers (fortunately, I got excellent service even for post-warranty equipment). Besides the sum of the components costs a lot, and requires commutation, which creates the risk of ground loops, etc.
As an alternative, we have all-in-one combos at an affordable price (considering the sum of the parts). They have all these features, are comfortable and, most importantly, already sound very good. There is a service period, and they can be replaced without much pain in case of death. In addition, in a few years, something even more functional and attractive will appear or the sound will improve (for example, under the pressure of measurements here on ASR). My choice today is here.
One more option — all-in-one active speakers. And there are very interesting products here, which cost much but offer more than the sum of the parts.
I'm not really worried about the class of amplifiers inside, as long as it sounds good, but it is obvious that class D dominates in such devices.