I moved to KDE on Debian and haven't looked back.
You are hemorrhaging users to phones, tablets, OSX, gamers to game consoles, power users to Linux.... pretty much everything that isn't Windows. We told you people were only using Windows because there was no choice, but you failed to listen and use the chance to improve your technology. Now, it's too late. There are other choices, and people are moving to them. To quote B5:
"The avalanche has begun. It is too late for the pebbles to vote."
In a way, I agree - but I can't say that I like KDE or Gnome 3. I ended up settling on XFCE using Fedora 20. It boots fast, everything works as it should (except a PCI DVB card - but I already had a spare USB one that works fine).
Thunderbird for email, Chrome for web browsing, terminal, Steam for my TF2 fix, and it all 'just works' - especially now the open source radeon driver does dynamic power management correctly.
I'm just in the middle of purchasing a new laptop - and the first thing that will happen is it be formatted and Fedora 20 get installed. I've also moved away from Google for contacts / calendar sync and now using OwnCloud (private stuff ftw!), and Dropbox is also replaced by OwnCloud. I'm finally getting to have a say in my OS and data security!