Couple years ago I paid $395 in my LGS for a fairly pristine 19-3 4" without box/papers -- great lockup and timing, excellent original stocks. Last year I paid $500 for a 4" 15-3, unfired, with box, papers, tool, original store receipt and was happy happy happy ...
For a non-P&R 19 with wear and no box, 650 is way too high. For the P&R 19-4 in same condition, still too high.