They are amazingly durable, and you've got to love the keyboard. I am using mine less now that I have the Pismos, but I still love to type on them.

I always admired the Duos, never owned one. Thought that was a good idea that Apple got away from...until they "revived" the idea with the MacBook Air. The 1400s are heavy little buggers - right about 7 lbs. "Solid" about says it.