"could be probably upgraded"
weasel words - no body knows, they can't even guarantee it.
"stable and proven platform"
Windows used to be. But now? God knows! For me, the main platform is the web.
As a developer, Microsoft are the least stable company (for a large one) - forever dropping stuff in favour for the next twinkle in their eyes. I've been burnt too many times, now enough is enough. I used to love everything they did, just like you do - but now, I take everything with a fist full of salt.
For the record, I don't use Apple. Their walled garden (which MS are desperate to have) keeps me out, rather than in!