Why shouldn't you? The worst that could happen is that you won't like it. Or, you might discover that you do like it and find yourself exploring a new computing platform with a whole new set of applications and capabilities. Maybe you'll like the user interface, maybe you won't. Maybe you'll like not having any viruses, spyware or malware, maybe you won't. Maybe you'll like the way the iLife apps function and allow you to create your own music, home movies, DVD's and photo albums right out of the box, maybe you won't. Maybe you'll like the security, quickness and stability of the operating system, maybe you won't. Maybe you'll like the award-winning design of the hardware, maybe you won't. Maybe you'll like using the latest and greatest Intel processors, maybe you won't. Maybe you'll like having access to a vast array of top notch opensource freeware apps ported from the Linux and Unix community, maybe you won't. Maybe you'll enjoy using some of your favorite commercial applications from the likes of Microsoft, Adobe and more on your Mac, maybe you won't. Maybe you'll like the supportive user community, maybe you won't. Maybe you'll like being able to dual boot into Windows OR into Mac OS X (or run them simultaneously in Parallels), maybe you won't. But practically daring everyone to give you a reason to try a Mac seems sort of pointless to me. Either you will or you won't, regardless of what anyone here might tell you about them. If I'm misreading you on this, i apologize in advance, but I'm not sure if you're being facetious or not.
jag