@DG: Maybe I'm just slightly more forgiving then.
I don't mind gimmicks provided they birth good stories. I will agree, One More Day is probably the worst possible decision they made in ages, but it's largely stuck and we've gotten some good stories since then.
For every Clone Saga, there's a Kraven's Last Hunt.
Was this particular move purely sales driven? Probably, but such is business. For every angry fan they lose, I wouldn't be surprised that they gain a few more.
Marvel is doing it now (although not really a reboot, and excuse the pun), DC did it last year (and other times before), it's just how the industry works.
Also, goes without saying that I'm really just expressing my own viewpoints and we are bound to disagree, but I didn't mind Straczynski's run. Yeah, the totem idea was silly, but an interesting view.
Heck, I look forward to having a laugh when I eventually read "The Other" properly

The great thing about having arcs in such a long running comic is that they may add to the mythos (as much as some may be hated), but still largely stand alone, especially when writers get swapped back and forth, and it can hurt a mainstream title but then you just wait for the next writer to come in and save it.
I just feel like in this day and age, you have to just go with it rather than throw your toys. Sure some stories will suck, but you can't keep everyone happy.
edit: Oh and can't really comment on AVSM. I'm only reading the main series, only read 15.1 to get the whole story, but I can see how it can be a bit weird having everything fine the one issue and then all topsy turvy the next.