Once upon a time people dismissed Linux due to hardware support. Whilst that may still not be perfect, its not perfect under Windows either and Linux generally supports more older hardware than Windows does. The killer double punch of Android taking over the world and now Steam for Linux has forced hardware vendors to take Linux more seriously at the same time as addressing another common complaint that there are no games for Linux. As a result, with the latest Nvidia drivers you can get up to 20% better performance under Linux than Windows in some cases and I suspect things will only improve there as more AAA games get ported to Linux:
http://www.phoronix.com/scan.php?page=a ... in81&num=1
On the audio hardware side of things, things have also improved largely due to the success of the iPad which has persuaded manufacturers to start making USB 2 class compliant devices, many of which work with Linux and JACK out-of-the-box (as opposed to JACK in-the-box
Windows 8 needs no explanation - I'm sure this has inspired millions to (re)consider switching to Linux. As for Apple, they've lost their leader and not everybody approves of nor wants to buy into the costly 'walled garden' Apple ecosystem. I've been there and I'm not going back although I will admit I prefer OSX to Windows.
Last but not least we now have quite a nice selection of native DAWs under Linux - Bitwig, Tracktion, Mixbus, Renoise, EnergyXT, Ardour, qtractor, sunvox... there is something to keep most everybody happy out of that selection
BUT
Where are the plugins? Unless I'm missing someone I'm only aware of 3 commercial plugin vendors who support Linux - Loomer, LinuxDSP (obviously) and DiscoDSP. Whilst Linux only has a handful of DAWs, I personally could care less about having 100's to choose from as I'm already happy enough with the options we have there but the selection of pro-quality plugins under Linux leaves a lot to be desired to say the least.
So, what plugins, apps or whatever else would you need under Linux before you could switch? I suspect it would only take NI and Uhe to support Linux and we'd start seeing a fair number of people on here make the switch.
PS If you're new to Linux or want to give it another go for music production I can highly recommend KXStudio
