Keep on dreaming. As long as Linux SUCKS when it comes to software support, as long as people expect their machines to run Windows software (which they quite logically do, that being the vast majority of available software, with Linux and Mac versions being usually unavailable and if available more often than not more expensive than the Windows version), as long as Linux support for hardware is as bad as it is (the hardware in that box isn't the only hardware people plug in you know, there's such things as printers, network routers, DSL and cable modems, scanners, digital cameras, etc. etc. all of which have very limited if any Linux support unless you're willing to modify driver source code, compile things (which often means installing new kernels and compilers from source), etc. etc., all things users aren't going to want to do), Linux isn't going to make a major impact on the end-user desktop (let alone the professional desktop).

People are more likely to buy Macs, if Apple gets their head screwed on straight and stops expecting customers to pay several times the price of a Windows based system just because it has the Apple branding.

Branding and marketing. I can not say it enough. Linux software support is fantastic. But you can not really go to the store to buy your add on software for it.

That has NOTHING to do with the technical ability of software. Not to mention the fact that software on a CD sitting on a store shelf is sooo 1990's. Out dated does not begin to describe it even in the ultra slow to develop propritory universe.

Asus is now putting GNU+Linux on their mother boards for the BIOS. I think that means that device support is only going to get a lot better and very quickly. Besides that most of the devices that are plugged in to a laptop are going to be USB. That has a certain ubiquity to it. Especially in the media player and camera market. Some of those media players run GNU+Linux as well. Lastly if the external storage of what ever sort recognizes as a portable hard drive then minus a propritory password loggin option, the device will work out of the box.

One more thing. With things like your DVR, Razor phone and Sony Internet able TV. You probably already run GNU+Linux and do not even know it.

The Linux crowd has been saying that for over a decade Ken, it ain't happened yet and I don't see it happening any time soon.
As long as they're as anal about doing things different from Windows for no other reason than to be seen as being different, and are as hostile as they are towards outsiders trying to get help, it's never going to happen.

Support is a laugh. The highest level of support I've ever gotten from a Linux support forum or IRC channel was a "read the f*cking man-page".
I've seen people get that sneer when asking how to use the man command...
These people have a massive god-complex. They think they're "better" than others for being Linux "experts" and think that sneering at others and putting them down is the way to show that superiority.

I have been using GNU+Linux for 5 years on multiple disros. I am still the biggest n00b you ever wanted to meet and I have never EVER been told to read the F*** whatever.

If that happens to you, you are just in the wrong community. Sorry to be so blunt but it is the truth.