Scott, still not entirely relevant without knowing exactly what "them" is. A Moore no. 2 jig grinder looks like a "Moore jig grinder" to the casual observer...but is worth way less than a G18 model, for example. Also much of the inherient value in a jig grinder is it's super accuracy. If that is called into question at all, (which it would be at HGR cuz you can't even run it..plus what the heck are they doing with it in the first place sorta worries), the value plummets dramatically. This is why for instance, Reliable got only $15,000 for a CNC Moore G18, and I got twice that much for the exact same machine...I could prove mine was "right" but they couldn't.
So, while I appreciate the response so far, I'm still waiting to hear from someone who can confirm a sale price or two on a 1980's G18 machine.
I've heard of a jig borer, but what's a jig grinder???
The Moore version of a jig grinder uses the same base column and table as the jig borer, but the head is very specialized for holding a high RPM pneumatically driven grinding motor. More to it than just simple rotation however...it will ossocilate and do other tricks as well. In contrast to jig borers, which are obsoleted by CNC machining centers, jig grinders still have useful roles in making the final "cut" on precision dies and certain fixtures.
And if you're wondering why you can't just put one of these high speed heads on a standard machine, CNC or manual...well, you can, but it's still not as precise as a Moore and the Moore has special design considerations to prevent the fine grinding dust from destroying the machine ways.