I believe that Canadian crown copyright should be repealed. We have paid for every photograph, video, and drawing produced by the Canadian government. Why do they "own" it? This is one way in which American copyright laws are considerably ahead of our own. If you look up Canadian military hardware on Wikipedia, 95% of the time the photos are images produced by the American military during joint operations.
I do not think that abolishment of Crown copyright entirely is the correct thing to do. There are a few cases where having copyright is convenient; it means that the government does not have to invent special procedures to prevent people from copying things (the Alberta diploma examinations are always the first thing that come to mind). Rather, I think that it would be better to say that the Crown does not get copyright in its works except where described by law.