I have a 1st gen razr and also a v323i. Both still work and are excellent phones. The razr survived an accidental drop from a second story motel balcony-only minor scratches. So, they are durable.
I've got a Razr V3m that is 2 years old and still going strong (with a fresh new battery). My only complaint is the buttons are too small for my fat thumbs.
I don't have any plans right now to upgrade. The Razr A10 or 9 or whatever it is, is neat. But only because it has bigger buttons.