Quoted from jalpert:Really nice HUO games go for about $4,500.... So I'd say $6K maybe? Anything over that and I think a nice HUO is more attractive.
At least battery damage shouldn't be an issue, but NIB does not mean it's perfect which people forget. Lots of games get unboxed to defects, usually minor but sometimes major. No warranty either.
Why would battery leakage not be a potential issue?