I brought a macbook to test websites on 2 years ago almost.
I booted the macbook, spent an hour configuring it and playing.
turned it off for the night. the next morning, I had the urge to boot it up first before my pc or other laptop. had a few more days where I looked for excuses to use it more and more. I couldn't understand why I was desperate to use it, but then I realised it was because it made computing fun again. No longer did I have to grimace and babysit a vulnerable system, no longer did I have to wrestle with multiple applications that all looked and behave differently. The mac fit in with the way I worked, and the way I wanted to work. Programs like textmate, cssedit, transmit, iphoto, mail and others were a pleasure to use. My laptop finally behaved how it should when I closed the lid! It felt sturdy.
After about six months of using the macbook, I moved across to Australia and travelled whilst working freelance, using my mac as my primay source of income. SOmething I don't think I could have trusted to a windows laptop.
So anyway, now I own 3 macs, an iphone and am in the market for another!