As of this writing, it's a little over a three thousand dollars on eBay — worth it at twice the price! Or not worth it all, depending on your definition of "worth it", and probably also your definition of "money".
That said, a guinea pig in scale-mail helmet and armor is the cutest fucking thing ever. Why? Why is it so cute? The only thing that could make this any cuter is if the guinea pig was holding the paw of a bunny in a corset.
Thankfully the money for the auction goes to the Metropolitan* Guinea Pig Rescue:
There are many guinea pigs who are brought into shelters because they are no longer wanted. For this reason, Metropolitan Guinea Pig Rescue, a non-profit Virginia corporation, was formed. Our purpose is to rescue, rehabilitate, and find new homes for guinea pigs in our area. We also work to educate the public on the proper care of guinea pigs. All guinea pigs are spayed and neutered, health permitting, before the animals are adopted into new homes.
Bid high and bid often, guinea pigs in chain mail aficionados!
*As opposed to the rural guina pig rescue or the regional guinea pig rescue.