[brador]

What else can run those business softwares? Not just Excel, but the legacy stuff.

So long as they need it they'll pay. And, unfortunately, business needs whatever is backwards compatible with Windows XP.

[jiggy2011]

I wonder what would happen if some company decided to throw a lot of money at the Wine Project and release some enterprise platform based on Linux that boasted full compatibility with old Windows desktop software?

[Tloewald]

So did you read the article? Your "points" are addressed quite thoroughly.