I’ve been running Linux since 1993 (kernel 0.99-pl13 if I remember correctly) on most of my workstations and servers. I’ve had my idiot-zealot phase (“nothing but Linux is good enough”), but fortunately have left that far behind me. Now I like teasing idiot-zealots with comments about that shareware Loonix thing.
So for the past few laptops, I’ve been running Windows XP, mostly because this Just Works(tm) on modern laptop hardware. Linux really didn’t cut it when compared to XP: yes, you could install it without too much trouble, but getting 100% out of your laptop (suspend/resume, good power management, full support for modern GPUs, etc) is a different story.