Firstly your comment is sheer hyperbole.. not "everyone" is heading to SAAS, and secondly, you make two huge "first world view" assumptions...
1. Everyone is willing to rent, and never have permanent access to, software. They are not.
2. Everyone has constant access to high speed internet, for free. They dont.
dcmg
Software as a service and subscription model is where everyone is heading, not just Adobe. Again, not a likely scenario either way as Adobe isn't likely to pick up an asset that is bleeding red ink.