From what I have read, one of the advantages of a timeshare is being able to purchase last minute bookings on the RCI or other exchange networks. Would it be beneficial in purchasing the cheapest timeshare membership available so you can have access to this network? From my understanding the Sapphire club membership would be the best one because you are not buying ownership and there is no deed so transfer would be quick and cheap correct?
Not necessarily. A "club membership" (whether Sapphire or any other) will still involve annual fees, despite the fact that you
own nothing.
Why do you believe that Sapphire would somehow be "best"?
Yes, RCI membership (a separate annual cost in and of itself, btw) will indeed give you access to purchase RCI Last Calls and Extra Vacations, but as Denise has astutely noted above, there may very well be
no offerings among those "unclaimed leftovers" in which you have even the slightest interest.
Consider renting a timeshare week exactly where and when you want to go as a viable alternative to either timeshare ownership
or club membership.
That way, you can go precisely where
and when you want to travel, rather than be limited to picking through unclaimed leftovers. Your money, your choice.