Many thanks, Andrew!
I did mention in my original draft about Derann finally closing in 2011. I would like to have expanded more and, like you say, a book could be written on the subject. I really wanted to communicate within the word count - which I and the editor had agreed - that Super 8 was, for the most part, eclipsed by VHS in the 80s. More importantly, many of the manufacturers shut their doors in that decade too, so it seemed sensible to present the article to the uninitiated in this way, without dumbing down or telling any untruths. One of the difficult things to gauge with a hobby mag like HCC is how much the bulk of readers already know or understand, while also trying to make an article entertaining for even the most casual reader.
I wrote a long piece on film aspect ratios in the June issue, and had to deal with the same dilemma: how much to include, and how much to leave out!