Board Thread:Questions and Answers/@comment-27849105-20160222191612/@comment-61022-20160225153507

The new volumes/numbering things are usually a marketing gimmick. Comic Book companies flip flop back and forth between new volumes and the original volume 1 numbering as they see fit. New "#1" issues are still viewed as collectable which reel in new readers who find the issue numbering daunting (Starting to read something at issue #600 and trying to figure out what's going on might seem daunting to some versus renumbering something to issue #1) They usually flip back to volume 1 numbering on an anniversary issue or if they're trying to appeal to long time readers.

The most recent example of this is Uncanny X-Men Vol 3 which ran for 35 issue and suddenly went back to the Volume 1 numbering with when they finally hit the 600 issue mark (they factor this by adding up all the issue numbers in each volume) They've previously done this with Amazing Spider-Man, Fantastic Four, Captain America, X-Factor and Thor.

DC Comics is also prone to doing this. They recently relaunched their flagship titles back in 2011, but they have just announced that their "Rebirth" event is going to switch Action Comics, Superman, Batman, Detective Comics and (I think) Wonder Woman, back to their original volume 1 numberings. --- Basically their longest running titles (Detective Comics being their longest running title having been published since 1937 which --- counting Vol 1 and Vol 2 -- has had 928 issues to date)