I was thinking of trying this as well. Just built out my rack a couple months ago with a pair of R620s, R510 as the SAN, and an HP DL180G6 as the backup target. But then thought, what if I built out a cluster with higher performing blades with GPUs and tried to run a thin client? I want to see if you get this working.
I mean, it is essentially working. I'm just using my gaming PC instead of a VM on my server.
I'm just trying to upgrade my server to move it off of my gaming PC. Of course, the GPU costs are another thing too..... But ya, I mean, Steam In Home Streaming works for streaming games/PC screen fine. I would say 50% of the gaming done on this PC has been done in that manner. It just doesn't make sense to use a PC for it. Steam In Home Streaming is essentially a server task, it takes up the whole primary PC. Steam should just add some headless server support and call it a day, because while there is sdefinitely a benefit of using it, it's so frustrating to walk up to my main PC and have it unusuable.
You're already way ahead of me, you just need to add a GPU in and test it out on A VM.
If I could, I'd simply just move my 4770k to my server and use VT-d and run games that way. Since the 4770k doesn't support that capability, I might as well just buy a real server chip, because if I make 1 VM for streaming games.... I'll definitely make 2... and then 3. Pretty much each time I upgrade my GPU, I'm just going to pop it into my server, up to 3 GPUs most likely (maybe 4, but I doubt it since I'll always have my main gaming rig and 4 gamers is all I care to setup for at most).
Then 3 Vizio P series tvs together in a "triple monitor" type setup.
The way I'm setup, I actually could just hardwire(Use HDMI instead of a client box as a receiver), and avoid using a clientbox with steam inhome streaming, but that's more of a test to make sure that works, since that's the capability I'm aiming for. I know it does, but I want that setup ready to go.
There is also of course the capability of remote gaming too. Especially with better wireless service coming, you could even tether and play globally. I know people already are doing this and there are services offering it, so it's just your own personal one.
I'd definitely try and step down it however you choose. PCs are fun because of flexibility. I went back to PC gaming once the Xbox One wasn't 1080p/60 fps. Said I'd just build a PC equivalent that could do the same thing, and now I'm looking to put that capability into a server.