I am assuming the "Scout" sized NF. They sold forever for around $300 in average condition. Of course, rare variants would be more. I looked on Gun Broker and only one was offered at $600 buy it now. It was started at $450 and there were no bids on it. Many have/had the Magnum cylinder and that makes it worth maybe $50 more.

There is no doubt the combination of Colt's tumultuous ownership history along with the election of Hussein combine to make it worth a little more than the historic $300. I'd want to get into it at or below $400 unless it really is mint.

My wife has one and it is a dandy plinker.