The old guide goes into great detail about each creative mode, custom white balance setting, processing parameters, AF point selection, exposure compensation and more. The new instruction guide talks about none of this but has alot of detail on full auto techniques. Go figure.
While this information is available in a pdf format, which is better than nothing, problems exist in printing, and being able to bring it with to the field. On the other hand, it is not an insurmountable problem. Just cumbersome. The beauty of the instruction manuals is that they clearly are made to fit in ones camera case.
When hesitating on throwing things away, there is a reason. Listen quietly and the truth will reveal itself.