It actually is getting harder to find good 'old school' produced stuff, particularly with the massive changes in the genetic source of the material, and the shift in market value, in turn influencing production methodologies.
More commercial operations seem to be prioritising static extraction and 'triple filter' techniques which yield much more desirable and higher return products. Alongside this, prevalence of general low/mid grade mousse type hashes (generally bulked with the byproduct of the top end production) have taken over the market share of traditional 'Moroccan' hashes.
Plus of course, there have been some quite significant shifts in global production generally over the past thirty years, due to political changes, farmers switching to higher value crops, political blockades, embargos, new emerging markets diluting supply, ect.

But it is still out there, just harder to find and maybe not quite exactly as you might remember it.