My next laptop will definitely be a Mac - and I'm looking forward to it. (I'm even willing to go for a slight performance decline when using my windows only cad software)
The fact that Audodesk, owner of 87% of the World Cad Market and 2nd largest software maker, made their software Windows only back in the mid-90's had a huge impact on Mac use for all CAD using companies. It has been the clinching argument since then to stay with MS and the PC, as well as the fact that Macs were almost always a performance step behind of PCs. Autodesk definitely have a deal with MS, but I'm hoping it will fade away and the tide will turn, and a Linux/Mac version of their software will rise from the ashes again. Sigh