Both prices are to high by at least $150.00.
Three things can be said about the M-19/66:
It's everything you need in a revolver and nothing you don't need.
The M-19/66 is a carry a lot shoot a little revolver.
The M-19/66 is one of the best combat handguns ever produced.
So when you find one at a decent price get it if you can...