Face it, a simple migration saves you lots of work. Apple's Migration Assistant transfers information when you set up your new Mac, letting you retain all your preferences and passwords on your new system. You pick up one one machine where you left off on another.
So why do so many of us here at TUAW manually set up our computers? It's all about cruft, that stuff that builds up over time. Cruft includes apps you no longer use, preferences you don't really remember setting, bits and pieces scattered around your system that accumulate with use.
We love unboxing, smelling that captured Shenzhen air, and setting up from scratch instead of bringing all our old mistakes and history along with us. And