Joining additional Boards?

Have any of you had to join other Boards (outside your immediate local area) in order to help specific agents?  I recently joined the San Marcos Board to help market some properties and to have access to their MLS for a couple of potential clients.

I have a new agent who knows a lot of people in San Antonio, and her brother is interested in buying an expensive home there (may have one already picked out).  It is a little more pricey to join, but not too bad (maybe $600-800).  Opinions?

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