If Montoya excels this year (and maybe next) while Lundqvist is doing the same, the Rangers are in the catbird seat and the goalies will never have higher value
One still does not know. I would rather wait until we can see Montoya perform at the NHL level. That should happen in another few years. Let him develop his game in Hartford this year and next, then let him be Henke's understudy for a couple of years and THEN make a decision.
As for goalie's value, I would say that Biron's value is higher now than it ever was. It did not hurt Miller's game to be in the AHL for a few years. And Biron's value has rocketed this year.
Put me in the don't trade Montoya camp. It's just to early to make a decision. Let him come up and play an NHL season before you decide who to go with. If they end up going with Montoya then Henrick should still bring a pretty good return in a trade.