Made me think, playing with that thought already for a bit longer. Intel has the new NUCs, coming out early in July, called Ghost Canyon (NUC 9 Extreme). https://simplynuc.com/ghost-canyon/
Advantage is that you can put a GPU inside, and you have the possibility to go up to an RTX 2070. I was in contact with SimplyNUC just now, and they will get back to me as I wanted to know which model of RTX 2070 they're installing, as they couldn't tell me in the chat.
I think I will sell my Hades Canyon and get this one, would also work a lot better for PC gaming. Would be only for convenience, as I have a rather new gaming PC (a bit over 1 year old), but it's in another room, but I want one in my living room, next to my consoles, so that I can use it on my beamer (4K), and also be able to have the nice 5.1 sound. It has to be small though, as you know wives tend to not like too much of the electronic stuff to be visible, they'd rather put a new flower pot instead. But this would fit well, as the width is just slightly more than the Hades, it's only about double the height, but that still fits well, and the PSU is internal, the Hades has a quite big external PSU.
Plus sitting or lying on the couch whilst playing is priceless.