Incidentally, Wolverine was pulled from all the X-Men books except Astonishing 2 or 3 years ago, then was in Astonishing X-Men, New Avengers and his solo title(s). That's a much different kettle of fish than when he was on literally every X-team and in every X-book.
Wolverine is currently featured in: Astonishing X-Men, Uncanny X-Men, X-Force, New Avengers, Wolverine, Wolverine: Origins, Wolverine: First Class, and starting in April he's getting a FOURTH ongoing monthly: Wolverine: Weapon X. Oh and there is the currently running Wolverine: Manifest Destiny miniseries.
So eight titles. Plus any random guest appearances. He wasn't even that overexposed in the height of the 90's speculator boom.
Plus every X-Men movie has actually been a Wolverine movie guest starring the X-Men.