Or you could look at it as the better software they write, the longer a user may go between revs... Thinking about how long our agency used Adobe CS2... Unless

Or you could look at it as the better software they write, the longer a user may go between revs... Thinking about how long our agency used Adobe CS2... Unless you are just referring to flashy features, which I fear would not ultimately always be about improving the product. The less sexy stuff is probably where I'd rather the developers focus if the feature set is already solid.