Class D amps are certainly more efficient and waste less power, especially at idle and lower volume. They can also provide some impressive specs, though there is always the debate of whether any of that improvement is beyond audible perception. One drawback of a Class D amp is that there isn't any headroom above the max rating. Some A and A/B amps can provide more than their rated power for short intervals, which can be handy for transient peaks, but that depends on how hard things are being pushed.
Accuphase is a very solid brand and is extremely well engineered with a very tasteful, classic cosmetic design. Some people don't care about brand names and appearance while that's very important to others. For some, a stereo not only plays music but is also an art object in their living room, something you have to look at everyday. Just like furniture, art on the wall and other decor objects, appearance runs from so-so to elegant, and prices from low to unbelievably expensive.
That's the nice thing about this hobby -- you get to choose what blend of characteristics and price work best for you. Don't spend your time worrying about what others might think of your choices (perhaps outside of your spouse....)
