[glaurung_]

The college I went to had a mix of whiteboards and chalkboards. Even as a student I preferred the rooms with chalkboards. It seemed like the light on dark contrast and no glare made them easier to see.

I also find disposable markers to be a bit of an environmental horror. In the grand scheme of things maybe it's not that much waste, but replacing something like chalk with a thick plastic non-recycleable marker for little if any gain is disturbing.