I think the info is out there to figure out the subscription thing. Someone already posted that the majority of Softimage clients are on subscription and getting the software that way.
Majority are on a subscription therefor no silver subs? Not sure i follow.
One thing that can mitigates that for individuals is that many also need a copy of Max or Maya
Do they really? What for?
Im sorry, but this is just typical. First, autodesk molds the customers the way they want them to be, than use that as an excuse for their decisions. For example, Softimage creation suite is available in Japan. Obviously, there are quite a few people out there who think its a complete 3d package, self-sufficient and capable... But thats not really what AD needs, is it? They need an expensive plugin for max and maya so they sell it and promote it as one. Finally, when people get on board with that, you say a lot of the customers also use max and maya. Well, big surprise.
The sad thing is, i can only see this getting worse and worse. Milking the last dime out of customers is what big conglomerates do and AD is becoming an expert in its own right.
Also, consider the following: Softimage users who opt for Entertainment Suite in order to use mudbox and motionbuilder, are also financing the respective developments of max and maya. This is just brilliant considering how Soft just donated its development team to one of those two.