There is much truth to this post about about #math textbooks.
@oantolin What really chaps my ass is that math & science books used to be $300+ due to manual typesetting of complex equations. The digital age replaced that need, but the prices never came down.

@DrSaucy @oantolin - no, they were never that expensive before. The astronomical prices started after digitalization.

In fact, the prices were in the low to mid double digits because that fit with the general cost of education, which was much lower. We went on strike when tuition aka "semester fee" was introduced - 50€ at the time, later deemed unconstitutional and repealed.