As I understand it, the new CS6 will have a very intriguing tool. It will be able to create depth of field, and do it simply.

This begs the question: who needs an expensive, fast lens?

One might say that "it's not the same as what a lens can do." Perhaps? Perhaps, not.

For example, rather than buy the 70-200 2.8 II IS, one might be better off with the 70-200 f/4 IS. Half the price, and still high IQ.

Plus, the tool in CS6 will allow the user to decide where to place the depth of field.

However, it's surely a tool that will improve as time goes on, and then buying that expensive (and, heavy) piece of glass might be a thing of the past.