The market for Esoterica blends really seems to have gone toxic in the last few years due to the competition to flip it at a 1000% mark up. Just another of those little vortexes of emotional sickness that humans create.
I've never found Esoterica difficult to obtain, I just supported a couple of B&M's and they took care of me. On line stores sell out in nanoseconds and putting in a request to be notified when it's in stock is a completely pointless waste of time, with one exception. Iwan Ries will actually hold the order for you and give you a couple of days to claim and pay for it. The other on line stores do zip, zero, nada, nothing, couldn't care less.
In any event, over the years I, rather surprisingly, ended up with about 28 lbs of various Esoterica blends that I like. I was a bit surprised, since I'd bought a bag here, a bag there, forgot I had this blend or that blend, etc, and only when I was packing up for the move last year, realized that I had a fair amount, all at "regular" retail, no muss, no fuss, no scalping, no difficulty. If you're not supporting and connecting with B&M's you're not likely to be able to purchase anything at retail.
Frankly, the last few years that I sampled showed substitutions that, for me, represented a substantial drop in quality. I wouldn't pay piss for anything later than 2020.
They were pretty good blends, not worth all the fuss, and certainly unique semi-aromatics. But the mania regarding them may be taken as evidence against the existence of intelligent life on earth.