I’ve been buying rolling stock kits on eBay off and on over the past year. These are mostly old Branchline, Intermountain, Proto2K, etc. I enjoy building these and usually get a really nice result. But I didn’t check them all out thoroughly when first purchased. Big mistake! So far I have discovered that three of them have been something less than “NIB”. These three have had missing sprues, parts removed from sprues, broken parts, even parts glued together (badly). On another, two of the doors on a double-door boxcar were the wrong color (manufacturer’s issue). On some I didn’t notice the problem until I had invested a lot of assembly time in the project. It’s too late to get my money back on these. However, on future purchases, I’m going into the box immediately when I receive the item, especially if the seal is broken. And if I find discrepancies, there will be hell to pay for the sorry slimebag that tried to scam me. There’s no excuse for claiming something is “NIB” when it clearly isn’t.
So my advice is, message the seller before bidding to verify the reality of “NIB”. And then check it when you get it.
George