I don't disagree with the fact that many people might prefer the current MB. But the trends point in a different direction. Stronger body construction, portability are becoming more and more important. SSD is becoming more important. CDs are going out of style. iCloud will give us more off site storage. This is a big disappointment of mine. I was hoping I can just keep all my music, movies/videos, pictures, documents, books up there, but it does not seem to be the case at launch. But imagine if you could. Wouldn't 32GB be enough on site? Storing non-immediately needed stuff in the cloud is where we are heading.
Now consider who is running the company. Didn't Steve Jobs tell people based on less compelling reasons that you actually do not need something (like a CD, hard drive or a bigger screen).