If goalies are as valuable as you say, then I think keeping Emery is wise. It would appear he has the nod in Philly. Having Neuvirth as a handcuff to Holtby is nice, but I don't think he is worthy enough to keep ahead of a Suter, Pietrangelo, or Backes.
What would is cost you to re-draft Neuvirth (i.e what round)?