Not that I'm contemplating this, as I a eagerly await my HMD, whenever it's ready.... , but for the sake of debating it, would it be possible to transfer your position as a backer to someone else interested? If this was a possibility, maybe a queue could be managed of people who did not back the 8K before the KS ended, for whatever reason, but have reconsidered their decision and would like to back it now if a slot becomes available. In this way if a slot is made available because certain backer decides to step-down... the first in the queue is offered the same reward for the same price originally paid by the exiting backer... and once the payment is complete the latter recoups the money.
Is this far fetched or even viable? I will probably purchase a Vive-Pro and maybe it is enough for my needs and don't feel like waiting for the 8k... or maybe I'll keep both or sell the Vive-Pro once the 8k arrives and it's awesome.... having options is always great