Earlier in the year, I picked up some powders at estate sales, for a touch over $200 for 8lb jugs.
Locally, a nearby shop (at a small club range) has had a handful of 1lb jugs of various powders that I've acquired, most for sub-$36/lb.
Online, via GunBroker and elsewhere, I've occasionally caught a deal in 1lb and 8lb jugs, during a brief period when buyers apparently were all stocked-up with their own inventories of such powder. Jumped on 'em whenever I could.
Don't think I've paid over $250/8lbs nor over $40/lb during this whole mess. But it takes far more effort than makes sense.
Can't say that primers have been that simple, nor as affordable. Dang things have been priced like gold and selling like hotcakes on GB and other auction sites, with apparently all the buyers the sellers need to keep the prices there. More power to them. I'll pass.