Alpine IVAD310 vs Alpine W200

I am trying to decide between the double din alpine screen W200 and the IVA D310 flip out.  I have room in my truck for a double din without a problem I just cant decide between the two.  Can anyone help me debate the two or tell me some benefits or drawbacks of either of these?  There is a about a $200 price difference for me ($200 more for the flip out IVAD310) but this wont really be my decision maker.  I'm thinking I would like the flip out screen because it has the rotary volume control and  sometimes especially at night I might not want the big bright screen in my face and I can still play the radio and control its functions with it closed.

Thanks,

Anthony