I have no problem trading Allen – or any player – provided we get a good return. For me, a 2nd round pick (likely late round) isn't worth losing a solid backup who can step in as a starter. If a team like Vegas is willing to overpay... go for it. If it's simply to dump cap hits... not worth it. Edmonton, Toronto, Vegas, Ottawa are good teams in need of someone like Allen. His level of goaltending isn't spectacular, but it's harder to find than we think.
If Primeau or Dobes looks good, Allen becomes expendable. If a team overpays, he becomes expendable. But unless one of those things happen, we have a 32 year old proven NHL goalie who can be leaned on for another few years while our newly-rebuilt team takes its first steps.