Have a DP pro - It's fun and still having fun with it. Played GZ pro on location a bit and it's exciting too being new and all.
Have a GZ Prem on order. As someone mentioned there is just more in the GZ prem vs pro - but DP the pro is the way to go as prem just doesn't add much to the game.
If I could only have 1 - I'd go GZ pro. My reasoning is It's new and shiny, and have played DP for a while already. There is an awful lot of shots in GZ too and it may have more universal appeal to random friends and relatives who are not pinheads who come to play once in a while.
Sooooo - get a DP pro right now and play the heck out of it. AND get yourself on a GZ pro list. When the GZ comes in sell the DP... 
Note - I'm just an average player.
Fort Lauderdale, FL
