FYI there a few different designations that Marlin sells; I've got the new Russell Sports catalogue in front of me.
Model 1895SS $589.99. This is the plain blued steel 22" barrel jobby, but the same great action as the vaunted "Guide Gun".
1895G. Guide Gun, blued action and 18.5" barrel. $599.99
1895GS. This is the "in demand" gun, the stainless barrel and action. 18.5" barrel of course. $719.99
1895 Cowboy. 26" hex' barrel and blued action and barrel. $769.99
So these guns are really pretty cheap unless you go for the SS or Cowboy models. Under $600...