I'm a Safari online subscriber myself, but I think this decision is a huge mistake. I also own books that I purchased from O'Reilly and I still use those books. Just because I don't continue to re-purchase them doesn't mean I don't use them or will never purchase another. I use them on a daily basis. I also use Safari on a daily basis. Why can't they see that there is a need for both models?
I rent things, and I own things. Just because I rent some things doesn't mean I want to rent everything. By the same token, just because I buy things every day doesn't mean I never want to rent anything.
We are truly living in the Idiocracy.