Interesting. I did not know of the "Membership Extras" offered to GO owners and their close ties to DVC offerings. Do you think GO Membership Extras is only for the original (developer) purchase and not passed down to the resale owner? Just a silly, crazy thought.
From the linked page:
Golden Oak Club members will not have access to all Membership Extras that are incidental benefits to Disney Vacation Club Membership. You should not purchase a real estate interest in Golden Oak or in a Disney Vacation Club Resort in reliance upon the continued availability or renewal or extension of these offers. These offers may only be available to Golden Oak Club and Disney Vacation Club Members at various times and may or may not be renewed or extended. These offers are subject to change or termination without notice, may require the payment of a fee and cannot be combined with any other offers or promotions. Membership Extras are also subject to availability, and blockout dates may apply.