An airsoft player is a legitimate player . e.g. purchaser. if he is a current member of a currently insured game site.

Membership cards are of no value unless they can be checked at the moment of sale to make sure the customer is a valid purchaser.

A system working on membership cards has no value to an airsoft retailer, the membership card has no value as the person on it could have been struck off the membership of the game site that morning, or the game sites insurance could have expired the previous day.

The values of any such secure photo card is not going to be any more than an ordinary ID like a driving licence or passport proving who you are, where you live, and how old you are. One should always be suspicious of scheme which require you to pay for what you can get for free, and if it offers fringe benefits you need to gauge there true value