From a series of Posts I made at ifanboy.com....
"I can understand the corporate mentality of an on-going….and with the titles like Batman, Spiderman, etc., it makes sense. I would think that with great selling titles or titles with one author for several years (Green Lantern for example), it would make sense to keep an on-going numbering.
However, with lesser selling titles/characters…..”Seasons” or “Mini’s” may be the way to go.