Comment by nyarlathotep_

Costs have been increasingly hard to justify given the wealth of information the internet provides, for some time now. Often, a sufficiently motivated person can piece together a lot of material themselves, given a general "structure" of topics/material.

Lots of textbooks floating around out there too.

LLMs add another layer to this. In many cases, the whole thing is looking a bit silly (at least at the state level)