I'm really in it for the DAC, and the convenience. I'll never use it to drive large speakers.
The only differences between the Nova and the Decco 2 are 40 fewer wpc, two fewer digital inputs, and no HT passthough. And, of course, 300 dollars. Same DAC, same topology, same everything else.
Since I won't need more than 3 digital inputs, and since 80 wpc is gross overkill for my application, I'd sooner save the $300.