I should of just googled it. So the NVIDIA Shield is really 200$. I'm not so sure that a good price point in this current market space. But I would absolutely expect and demand it do whatever feature it was on plex you wanted it to do and a whole lot more. That price is why I've never seen one in person. I've heard the name but that's it. It's probably great and if it wasn't that would be a problem. Is the NVIDIA the most expensive streaming device on the market? I can't think of another that's more expensive.
The Shield Pro is $200 (occasionally on sale for a bit less) but there's also the Shield TV (sometimes referred to as the Tube) that is $150. The differences are the Tube has no USB port, and the operating system is 32 bit instead of 64 bit. It still has a Gigabit Ethernet connection, and has an SD card slot for expanding the internal memory (which is also a bit less than the Pro). I have both and the Tube had no issues playing my 4K Blu Ray rips with full lossless audio sent to my AVR, so I have no problem recommending the lower cost model for most users.
There's one place the Roku beats the Shield, and that's in a couple of codecs supported. The Ultra can decode AC-4 audio to AC-3, and it supports VP-9 Profile 2, which YouTube uses for some HDR content. But YouTube appears to be moving to H.265 for HDR, and the Shield will play that.
