I actually thought the boris result was predictable TBH and I had predicted 72k on it in private discussions.
I understand the 'mind blown' reaction as there hasn't been a public boris data point at that level, but even if we look only at public data points, the HA comps paint a picture:
- pieces not on the same level (spaceship book cover?) getting 30k and the like recently
- more interesting pieces like SSOC 10 getting 30k also... but FIFTEEN years ago!
In other words, nothing had busted through that 30-40k level, but the items reaching the cap were progressively lower quality implying that a more desirable piece might bust right through that cap.