Bill,
I have a couple '57's in 64" and really love the way they shoot, but I believe most folks want the 60" since it's a bit more rare, more convenient to hunt with, and some even say faster. My '66 Kodiak in 64" is really smooth and I shoot it better than the shorter bows.
BTW, I tried to get that '57 but you beat me to it. It looks like a nice one and was priced right too.