Understood, this is marketed as a "corporate gift", but I think Kagehitokiri wants to know how much the corporation pays for each membership and how few a company might be able to buy.

The problem I forsee with the arrangement is that there is a one-time payment and no accountability for future value because the entity that buys the memberships will generally not be the user. There will be exceptions to the extent that firms give these to board members or senior executives who can provide feedback, but a client is unlikely to complain if a gift doesn't perform.

In any event it's an interesting variant on credit card or concierge service linked benefit programs.