The 28 year old guy has some injury concerns, plays a very heavy north-south game, and there is absolutely no guarantee he will be the same player at 31, never-mind 33+ when this team is a serious SCF contender (if all breaks right).
It's natural to develop an affinity for home grown guys. Kreider is my favorite Ranger. As you can see by my join date, Kreider was the first Rangers 1st rounder I witnessed as a die-hard fan. First 1st rounder I witnessed as a fan that followed the prospects of the hockey world. I own his home and away jersey.
But, we have to be realistic. If Kreider was a non-Ranger UFA, would you sign him to a 7x7 contract this offseason given the state of the team? I wouldn't. And, we have a chance to add a mid-1st round pick (not a deadline first which often ends up being in the mid-high 20s) for him.