If the machine in question is truly in good condition and only 1 year old, $1000 would be a bargain for it and the grinder.
BUT, who really knows? I know of the auction you speak of and very little information is provided other than standard machine specs.
At that price, Id guess either the seller doesnt know anything about what theyre selling or there is something wrong with the machine.
Personally, I wouldnt touch it before seeing it in operation in person (which may be a possibility, ask the seller).
My view on buying second hand machines blind (ie without having seen them in operation) is that the price should be such that if it doesnt work, you can write it off as bad luck. For me, $1000 is way over that point.