Thanks for your extensive response, appreciate the time you took.
So, lets see...
Faster booting - This is a bit of a hack because in fact the OS uses a section of the disk where it hibernates the OS then simply re-activates that part. Quite frankly; I can do the exact same thing on Windows 7 is I tell it not to shut down but to hibernate. The 'runs faster' is also disputable considering how much options and eye candy they stripped from parts such as the desktop. If I minimize the visual effects (turn off aero, animations, translucency) I can get my Win7 to run a whole lot faster as well.
chkdsk repairs on a soft-raid volume while its mounted - I can do that with Win7 as well. Unless of course its the system volume, but quite frankly I don't see being able to perform repairs on a mounted and used system volume as an enhancement. I consider this a major risk factor instead.
Multi monitor - Can't comment there since I only use one. What I can say is that it could be expected considering that they've limited the features severely in other areas. Think about running two "TIFKAM" (The Interface Formerly Known As Metro) side by side. Can't be done on lower resolutions, even if those are still pretty common for Office use.
Cloud services - What does "integrates neatly" exactly mean? If I want to I can easily setup my Win7 Explorer so that it can directly access stuff as SkyDrive, S3 buckets and dropbox if need be (mostly using Webdav btw). Within my Office environment I already have the option to directly store documents on SkyDrive.
Performance management tool - Does it really? All I saw are more bells and whistles. And if you're by any chance referring to the "Windows Assesment and Deployment Kit ('ADK') then yes; this is new in Win8. But don't be fooled; A lot of these tools come from the Windows Performance Analysis developer center which, you guessed it, is also fully available on Windows 7.
Better yet, and this is why I described this as mere "bells and whistles" earlier: hopefully you do realize that most of these "new features" have been long available with the PowerShell environment? (which is IMVHO the number one admin kit for Windows these days). For an example check out this quick TechNet post on PowerShell system performance analysis.
Windows 8 added more bells and whistles to make it easier to access, but its nothing really new.
File history tool - Uhm, that has been around since Vista. Check properties, then "Previous versions" tab. Better yet: the Win8 "feature" requires an external drive or network share to work (its disabled by default) whereas this feature in Vista & Win7 is on by default and doesn't require anything extra. Talk about taking a step back in user friendlyness!
Profile management - Enter Windows 7 professional. Its not possible on the home editions, but the pro has no problems with this. In fact; I'm using Win7 using a regular (non-admin) account myself. This can be further enhanced by using the policy editors. Once again; long existing features which have only been made easier to access.
Software based on authentication keys - Idem on Windows 7. Takes external tools to setup though but its doable. Especially considering that Win7 already provides native support for stuff such as RFID security cards.
IPv6 handling - Ah yes, it favours IPv6 over IPv4. True, read many stories about this.
Better graphics - Its still the drivers doing all the work.
Better performance - So far I'm not a believer. Also see an earlier point about performance aspects in Win7.
File Manager & hidden files - Yes, I can see the advantage there as well.
Security Essentials - Once again agreed; also a very good enhancement. Many virus scanners drove me completely nuts so I eventually started using these as well, works like a charm.
So summing up the main enhancements which I can see are better IPv6 support, easier option to check for hidden files in the Explorer and the inclusion of security essentials.
Needless to say but for me its by far enough to consider an upgrade. Which is basically what led to my earlier comment. I'm under impressed because many features are already available but seem to have been made easier accessible.
I can't consider "easier accessible" to be a new and exciting feature tbh.