Very difficult to answer without knowing of any that have been sold. It would take many thousands of pounds and a swap for a ST for me to part with mine. Are there that many people willing to pay well over the odds to get a ticket? I guess that most on the ST waiting list are newish supporters...
Probably depends on whether you were stupid like Timmy and have to keep paying £600 every 5 years or had the foresight to pay £1000 at the start for a lifetime deal.