Interestingly enough, Bitstamps VPVR is considerably different from BLX, showing a point of control around $8300, as opposed to $6250 level.
This is using the same 27 Month volume data from mid $3K in September 2017.
Given Bitstamp is one of the much older exchanges, to me this implies that ₿ OG's are buying at higher level than exchange averages.
Not that the volume difference is far from minor, compared to the BLX volume profile, even if within the same wide range:
Very interesting observation! I've never thought to use a volume profile on BLX. Since BLX is volume-weighted
and Bitstamp is always one of its constituent exchanges, I would think it gives the most accurate picture of key price levels. This is the current breakdown of constituents:

It might be interesting to see a more granular VPVR.