There are very few hard and fast rules. Some key considerations:

People will collect anything and with the use of the Internet finding them has never been easier.

A collector needs to do a significant amont of product research in advance and learn a few of the basics when it comes to the collectables you wish to sell. For collectors in new markets, with products (like action figures) being updated every 6 months it is important to gather information from reliable sources. Where possible direct from manufacturers. As this is not always forthcoming a quick chat with local stockists can often indicate scarcity of items within consignments and this is likely to have a bearing on pricing and future values.

With memorabilia often signed, early versions and foreign offerings may offer added value to collectors and are likely to be more widely sought after. Signatures to obtain full value require authentication and a ccertificate to support this.