Agree. That's really more of the issue. It would be nice if any future developments downtown in the CBD were residential or mixed use. I'm still holding out hope that some of these older office towers can be converted to residential.I don't think the problem with the core is too many offices, but rather too few residents - and therefore, too little interest in after hours usages, street level frontage, +15 access, services for families and the elderly, recreation, and the environment. Obviously this is slowly changing. I'm also very grateful that Calgary has so much public access to waterfront because it does wonders for environmental advocacy and our sense of identity.
As far as office space in the Beltline goes, I recently read an article where the city of New Westminster is trying to curb conversions of office space turning into residential. They see the value of having a mix.