My 2016 Scott Specialized provides no value either. I believe it means there have not been enough sales to fairly estimate its value, likely assuming there are enough of them to be able to do so. After all there are values in a few listings in Scotts where the item is so unique another most likely does not exist yet the value is supplied based upon that one sale (ex. 11Ab).
I have seen another on a Facebook web site and heard of a mint block which includes this position also. There are 4 used version sales in Siegel and there have been 4 used listings on
ebay (this year). No unused though.