My take on it is a little bit different. Workplace change is forced on someone usually. What we are dealing with here is nothing forced on us. Many of us were eager for the change. It got our juices flowing.
I think what you are seeing here is not resistance to change, but anger. Anger, because for many of us, for the first time in 20+ yrs of playing D&D, we are being left behind. We associated ourselves with an image. A Brand, you could say. A part of our identity was that we were playing D&D, the latest edition. We may be old timers, we may have cut our teeth on the game in 1984, but we also play the latest & greatest game they put out too. We may houserule it, but we are still part of a growing community of gamers. We buy the newest stuff, or at least check it out and steal from it for our games. When people publish a module, or a new spaltbook, it's for us, damnit! We are part of the next great thing. We are evolving and changing with the game. We are riding the wave of newness, freshness, the latest and greatest. And we loved that. It was part of who we were.
Part of our identity.
With 4e, many of us just felt we couldn't make the switch. It was too far from the game we played and loved.
The result of that, was we were no longer the cutting edge. I know I personally feel regret that I won't be able to go into Borders and sit down and read the latest D&D books. That's something I have been doing since 1984. It's basically like someone teling me that the car/computer/IPod that I have now will be the one I will have forever. There is no sense checking out new cars/computers/IPods, because I won't like it.
It's sad, sort of depressing. It makes me feel old and left behind. Out of touch. And that excitement that I have had in looking forward to the new thing from D&D, that I have felt since 1984, I will never have again.
From that comes anger. Anger at the people/company who took away a part of what I liked about my life, a part of myself. Something I identified with. Something that made me who I was. Anger is a natural reaction, along with the sadness. Eventually acceptance will come, or has come for many of us, and we will find something else to identify with.
I think that's why so many people have such high hopes for Pathfinder, and are calling it the real D&D 4e. That way they really didn't lose anything, they just re-associate that aspect of their identity with something else. Same with the people who are going with C&C, or other systems. It's no coincidence that people are picking up their heads out of the 3.x books, and looking at new and growing systems. They want to be a part of something they can identify with in the same way they used to identify with D&D. They want to be able to buy the new car/computer/IPod damnit! They want to be a part of something successful, new, that grows and evolves along with themselves and their gaming hobby. Just like they used to have.
It stands to reason that for the same identity issues, some, not al, but some people went to 4e because they didn't want to lose that part of their identity. I think most by far went because they loved the system, and it worked for them. But some went because of fear of losing part of themselves.
Edition wars arise because people basically don't want to be analyzed as to their psychological motivations, or reasons for doing something. Most think they are completely rational creatures. If you threaten their sense of self, or identity, they get angry. Their defending of their game system or true motivations is essentially stemming from their identification with the game they play. The more they identify with something, the more hostile they get when you try to take that source of identification away from them. Loss of the argument triggers fear of losing part of themselves. Back someone into a corner and th reaten to take something valuable from them, and watch how they react.
Just my 2 cents...