According to the Official Index To the Marvel Universe, since its time as Timely Comics, Marvel Comics has published over 32,000 titles, and there’s bound to be at least a thousand more in the past ten years since that've been published.

Jonathan Hickman’s Fantastic Four run, Spider-man: Blue, the original Secret Wars, X-Men: God Loves Man Kills and the acclaimed work of Chris Claremont on the X-Men franchise overall are all universally agreed upon to be some of the finest stories to have come from the House of Ideas, but when those are spaced around hundreds of other issues and releases, stuff tends to get overlooked.

The point is that the numbers game is always working against readership. It is a hard truth, but one that means that everyone has their own “pet books”, the titles that, while not initially well-received, have developed something of a cult following in the years since they were originally published.