A lot of the benchmarks shows, just how strong Linux/Ubuntu actually is, even more so as it costs no money.
This makes it even more frustrating, that Mark and co. went down the Unity and Mutter road. (Mutter WILL crash if you use a HD 4770 like I do.)
My guess is, that 90% of the people - including me - that earlier moved from Windows or Mac, were initially attracted and inspired by the desktop visual effects: wobbly windows, transparency, desktop cube etc.
And not only is that all gone, you can´t even change the colors away from that terrible purple, pale-orange and ...brown scheme, award-winning potential in ugliness and bad taste.
And the new interface seemes like it´s not there at all yet in useability either.
But still, if that were all to be corrected over time: As long as Adobe, Steinberg and other major players in the app business will not support Linux, it will always be a niche. And why should they? Out of the 3% of people, that uses Linux at home, maybe another 3% are photographers or musicians, not a base for using huge amounts of money on rewriting their whole line-up of apps.
I just went back to Windows 7 after three years of fun with first Ubuntu , then Kubuntu and finally OpenSUSE 12.1, in my opinion the best ever distro. But my need for Photoshop, Nuendo and NetObjects simply made my choice inevitable.
Sadly...