While there are a lot of sellers here selling vintage toys, and many of them listing them as “New”, should you choose to list yours here,“Collectible-Like New” is the appropriate condition.
As per Amazon’s Condition Guidelines:
Toys & Games - Collectible
Collectible toys and games must be rare, exclusive, one-of-a-kind, or otherwise unique. The General Condition Guidelines do not apply to the Collectible Toys & Games.
Use the following condition types for Collectible Toys & Games:
Collectible - Like New: An apparently untouched item in perfect condition. The original protective wrapping, if any, may be missing, but the original packaging is intact. There are absolutely no signs of wear. Suitable for presenting as a gift.
Collectible - Very Good: A well-cared-for item that has seen limited use but remains in great condition. Item and instructions are complete and undamaged but may show some signs of wear.
Collectible - Good: Item shows wear from consistent use, but it remains in good condition. The original instructions are included and in acceptable condition. The item may be marked, identified, or show other signs of previous use. The item works perfectly and is in good shape overall.
Any seller who lists such toys as “New” is opening up themselves to problems such as return requests stating “Not as Described” if there is the slightest imperfection.
That also ties in to the suggestions NOT to send your items to FBA.
You will have no control as to how your items are packed, and any mishandling can open you up to similar condition complaints.
While there are many collectable toys on Amazon, another thing to consider, especially if thinking about FBA is sales rank.
Most collectable toys do not have great sales rankings, meaning that sales may not happen quickly, leading to FBA storage fees, which can very quickly eat away at any profits if and when your items sell.