idbeholdME: There is going be the same problem as movie/show streaming.
If they ever reach 13 ms or whatever number (the question of why the hell should there be ping in a single player game still stands), it's probably going to be stuck at 1080p or if not, it's going to be brutally compressed. So you will have a very limited image quality, probably stuck at 60 FPS to save the cloud computational power (or will have to pay extra for) and the need of a very fast internet connection (which is still far from omni-present).
And guess what the delay on a 60 FPS game is? 16.67 ms. You are already over the arbitrary 13 ms limit. Anything else is extra on top of that. And it's going to take a long time before streaming of any kind moves to higher resolution/FPS numbers and it's still going to be lagging behind massively. Just look at the quality of a movie on a Blu-Ray vs a streamed one.
So by the time game streaming reaches that point, having a dedicated gaming system will probably easily be able to handle 4/8k at 144/240 Hz. And high FPS is much more important in games than in movies because there are inputs. Say what you want, but I still noticed an improvement in my play when upgrading from 165 to 240 Hz in a game like UT 2004/UT 3.
Maybe my head is in the clouds, but we'll see.
It's true that I stream 1080 movies, not 4k ones. Honestly, I think we've hit the point of no returns, especially on a regular screen (ie, 50-65 inches nowadays) in a regular living room.
I think 1080 to 4k may make a difference for SOME (but not all) setups, but unless you got a mansion with a movie theater sized screen (ie, you're in the 1%), you won't get anything from going from 4k to 8k.
Worst comes to worst, they may implement a temporary caching layer of some assets with a locally implemented final rendering engine (similar to what browsers do with regular internet pages) to speed things up so that they have less to transmit over the network.
Also, while I don't foresee huge improvements in latency, bandwidth will probably keep getting better for another decade at least.
Lemalee: People which don’t care about ownership are weirdos. Most people on steam don’t even know what drm is but they know that steam is the lesser evil than rental services. I talked to a lot of people on steam and explained the difference between gog and steam and they are now a part of the gog army as well. But you can use goldberg on most steam games where you can play games without the launcher to preserve them.
My personal point of view on this is that rental services (in contrast to Steam) are actually honest with you about what your ownership status with the content you are paying for is and, unlike Steam, actually offer some kind of added value to offset the fact that you don't own the content (ie, you don't have to install anything and you pay a modest monthly fee to access a very large collection of content).
The base model of Steam is great for publishers (you monetise the content piecemeal per unit and still retain control over it), it sucks for end users. They just wrapped a shitty core in one of the most refined package (great client, stable services) seen in the industry (and a lot of momentum in terms of content), but the core of it is still sh*t.
To be clear on my point of view, drm-free > Netflix > Steam.
The moment I can't get the former, I'm going to Netflix, not Steam. I'm not a sucker, I want to get more value for my money.