It's a nice bow.  Elites are extremely easy to tune and have a great draw cycle.  I've not shot the Answer but I imagine that it's a great shooting bow.  $600 is not a bad price but I think he could knock 50 bucks off of that.  I mean, it's a bare bow, going on 2 years old.  Brand new price was probably around 800 or 850.  Winner's Choice strings are ok but not good enough to be a major selling point, IMO.  If you pay 600 I definitely wouldn't say you're a fool but to me 550 would be more realistic.  There's a TON of used bows out there for sale these days.