To the original OP: make an offer. However, if $750 is the "correct" value and $850 is the asking price, then ask yourself how much do you want to own a pre-64 in .257 RBTS? I've pissed away a hundred bucks on foolishness before in my life (on dumber stuff than a decent old rifle). I passed on a couple of rifles over the years because they were $50 - $150 too high, now I would have liked to have owned them (at least for a while). If it stays on your mind go buy it and enjoy shooting it.