The average price for a good AG-1980P is $200-300.
A broken one is worth $75-100, and needs about $200 in repairs. Yes, an already-working on is overall cheaper, but also harder to find. Sometimes repairs can be even more costly, as much as $400. So it's always a gamble when buying units. Even "good" ones can go out soon, as those caps are all over 10 years old now, even in the last units that were built by Panasonic.
This marketplace was created as an eBay
alternative -- no fees, no shill/fake bids. However, good VCRs go fast arounud here. You need to be really careful on eBay