I want the benefits of mass production commodities and be able to buy a good PC gaming machine off-the-shelf for a lower price.
The Steam Machine won't give you that, because it's small and because it has a brand stamped on it. It's going to come at a higher price.
Iâ(TM)m tired of spending so much time building my own custom PC and doing OS installations.
So buy one prebuilt.
Iâ(TM)m sick of Microsoft charging me many times more than everybody else for a Windows license because I didnâ(TM)t buy a pre-configured machine from an OEM.
So buy a pre-configured machine from an OEM, which is what you are proposing to do.
Iâ(TM)m sick of Windows blue screening and corrupting my EFI boot partitions so my dual boots wonâ(TM)t work.
So stop putting multiple OSes on one disk. Segregate onto different storage devices. Problem completely solved.
- Iâ(TM)m sick of Windows nagging me about turning on Secure Boot. I donâ(TM)t want it.
Iâ(TM)m sick of big giant PC towers that take up massive space and donâ(TM)t fit well in home theater cabinets (or anywhere else).
Buy a SFF PC.
- Iâ(TM)m sick of loud PC fans and the unnecessarily high power consumption and heat
Buy a low-power CPU and GPU
I want a gaming PC that is fully utilized for games, not loaded down with needless background processes sucking up CPU and RAM
So disable the indexing service etc.
- Hardware driver updates for Windows is such a chore.
It is? The only ones that see many updates are the GPU drivers, and geforce experience handles that for me with very few clicks. Perhaps you are currently "enjoying" the AMD experience.
Windows mostly broke DirectX/DirectInput compatibility. Iâ(TM)m so sick of having to get xce360 working and re-configured for every single game I buy now.
Shoulda stuck with win7 for gaming, boyo
- I hate it that Fraps doesnâ(TM)t work any more with non-fullscreen mode starting in Windows 8
See last. Also, fraps is over, what are you, new? Now you use your GPU recording tools.
- I donâ(TM)t want to be pushed to Windows Store
Not going to happen yet. Maybe later.
TL;DR: a Steam PC isn't going to solve any problems; you didn't list any problems which aren't already solved.