I'll probably utilize just a few of the X7's abilities. I currently own no decent passive speakers, I have no interest in bluetooth connectivity or USB-hosting for Android/Apple devices. Nonetheless, the PCM1794 is a great DAC by all means, and expensive. the TPA6120 is an acclaimed and widely used component too.
Of course, there's no denying that the Magni/Modi Schiit stack is one, if not the best value currently out there.
Still, I wouldn't go as far as to call the X7 overpriced. 400$ is certainly not cheap, but it does a lot of things and has the components to back it up IMO.
The Audio-gd entry-level units for example are great devices, costing around 300$ to 400$ [NFB15 and NFB11 after PP and postage].
They're feature packed audiophile products, considered great devices by many, just like the Schiit stack is.
None of those devices have a DSP inside, or Bluetooth, or NFC...
All this adds to the cost, undeniably. But in theory, the X7 can replace those devices, adding DSP capabilities to the mix.
The Mixamp is 150$ + Schiit stack is 200$+, A-gd 300$+.
So again, in theory, the X7 is a good value IMO, as should it hold up in practice too, it can be a device that would replace those units for us that already own them, or would normally have to won them along with a Mixamp to get us covered.
In conclusion, I am not arguing that the X7 is the jack-of-all-trades device, but I think considering what it does and what it packs, it is not overpriced.
Would a 50$ DSP-only device be nice? Sure! I'd buy that instead.
But with the X7, I think Creative could have done much worse and other than the lack of DTS, at least from me, it gets good scores for ticking all the right marks, at a price that is not prohibitively expensive [the Headzone.... the Smith Realiser, anything 'premium' TB,... most gaming brands are just not a good deal, are they?]
I see what you're saying but I have a problem with it because I would never use my $300+ NFB-15 for console gaming. It's overkill. That's why I think the X7 is overpriced. It provides a lot of features that I don't want, but have to pay for.
Here's an analogy: when my wife and I bought our last car, we wanted to get a Satnav/GPS built in. However, the ONLY option provided that included the GPS was $4000 because it also included all leather, a sunroof, etc. These were things I didn't want and shouldn't have to pay for, so I ended up not getting GPS in the car (and I'm still annoyed about it). Is leather and a sunroof worth the price? Maybe. Is it something some people want? Sure. But not me. I refuse to pay $4k for a few-hundred dollars in relative value.
I think of the X7 in the same way. It has some great specs and lots of bells and whistles. But if I just want a DSP with optical out, it's super overpriced.