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The Macbook Aluminum is like the original Macbook but made out of one big chunk of aluminum that Apple called a unibody. It's basically a shiny, fancy piece of metal that looks like it was built by a mad scientist.
I got the Macbook Aluminum and it looks like it was forged in hell.
My Macbook Aluminum is so shiny, it could blind a troll.
This Macbook Aluminum is so fancy, it makes my old laptop look like a toaster.