I like mine. I thought it was worth the extra, and as I deal with Windows stuff every day of my professional life, coming home to something different gives a feel of separation. I like the photo and video stuff that came with it more than the freebie ones I've used on windows, and itunes runs better too. It has backup that just happens and I don't have to manage, just by plugging in a USB disk.
Don't buy if you're expecting some angels-singing, light pouring from the sky revelation to your home computing. Don't expect everything to be "better", or to be intuitive straight away. Don't buy one if you've got a load of windows apps that you absolutely must still run because keeping a VM of windows going is always a compromise.
Try it, you might like it. You might not, and just want to use Windows. That's fine too.
(thread of mac and windows fanboys arguing the toss about irrelevant stuff can continue)