Re: Microsoft Marketing , useless beyond belief.
@Adam:
Nice try on the FUD. Sadly, you're talking bollocks on the technical aspects of 10 (Cortana only works if you're logged in with a Microsoft account, you can disable it if you don't want to use it with your MS account, and you don't have to have an MS account to use Windows 10 in any case. Ditto Office365 vs LibreOffice, OpenOffice and probably plenty of others....),
As for your claim that it's "perfectly reasonable" to use an OS that is at this point 4 versions back from the imminently-current release (not to mention almost 14 bloody years old and designed around a completely different hardware and usage paradigm to that which is standard today) - it's either in relation to a use case so niche it cannot possibly be considered relevant to most users, or just founded on utter ignorance about everything that's changed in the Windows ecosystem since then.
It's one thing to not run eg Fedora because you don't want to upgrade every 6-12 months, but complaining that an OS upgrade once every 10 years is too frequent is the sort of thing that deserves little except derision.
In the phrasing of your own analogy it's more like - concerned relatives stage an intervention to try and get you to accept that you need to let go of the mouldering corpse of your dog (which has been dead over a year), with an offer of a new, similar but non-identical, puppy to help you with the transition. Meanwhile, you sit there cradling the mouldering corpse and insisting that everything's fine and he's going to live for several more years. Eventually, a couple of burly chaps are called in to fit you with a new overcoat and some fancy sleeves...
Biting the hand that feeds IT
