That's cheap. They've been running $650 and up when I see them. I had two 44 mags and a 30-30. I used the one .44 a lot for deer and bear up to a hundred yards. It even went Moose hunting. I killed an 8 point buck at 100 yards with it. They're darn good guns and as handy as it gets. I have the Marlin Spikehorn now which is Marlins version of it. I miss my .44 Trappers.
Does it have the 16" barrel? My .30-30 was the Ranger youth 16". My two .44's were true Trappers and both had receivers marked 1894-1994. The Ranger youth is the same size albeit a shorter stock and wears hardwood furniture instead of walnut which makes it less valuable.