Puts a damper on any regular joe trying to resell records - or any collectibles (hell, or really anything of volume) - online. The $600 threshold is way too low and is pretty ridiculous.
I think this is part of it, but labels probably run the numbers on product sales and peg each artist with the optimal price point for turning the quickest and highest profit. Hence Evans and Mariah get more copies than Ayler.
I appreciate what Resonance does as I love their Rollins in Holland and some other Evans and Montgomery sets they did. But none of their LPs are AAA, so the runs on these things don't make much sense to me. Most of their titles are on CD and/or streaming platforms. No need to break necks or wallets to get these things.