Actually, you know, I'm going to pull back on my original post a bit. I didn't realize they were using a $500+ Optane drive in here and not in some of the other systems they compared to... that does inflate the price quite a bit.
Still, it seems even the barebones being $1500 is a lot. Not sure where the majority of the cost is coming from otherwise without the Optane and GPU. Still seems like a decent premium, but not as exorbitant as I originally thought. Especially since there are some trade-offs (like the x8 PCI-e, etc).
If you don't feel like building one and money is not a concern- then this machine is likely perfect for you. No problem with that at all. In fact, if this machine was more affordable barebones, I'd be interested myself.