OP: I had a Parasound P5 a few years ago. I think back then they didn't use the word 'halo' in the model name but I could be wrong. I used it with Parasound A21 and for the price it sounded really good -- balanced from top to bottom, a bit on the warm side, could have been more resolving but that's expected at the price point. I later replaced it first with a Peachtree Nova 125, and then with a Cambridge Audio Azur 851D to serve as the DAC and preamp. In hindsight, P5 was substantially better than Peachtree and Cambridge Audio. I regretted selling it.
You can also look at it this way ... you will pay retail, or close to retail, if you get the NewClassic 200. You will always wonder if P5 would have been a better choice. Eventually, this feeling will get the better of you and you will end up selling it in the used market. Because you paid close to retail, you'll take a bigger hit. Now if you get the P5 and don't like it, your loss will be smaller if you try to sell it later on.
I say go for the P5. Emotiva should only be bought for your in-laws.