The Ottawa market is a bit unique though, to be fair. Despite being a decently sized city, it's not really what I would call "major market." We've seen a few stations disappear from Ottawa over the years, and I suspect that it has a lot do with the fact that there are probably too many stations and not enough population to sustain them. I visited a friend in Ottawa last year, and was able to drive through the city fairly quickly (illustrating that this is not a Toronto, Montreal, or Vancouver).
If you look at the media landscape, only three AM stations remain. Also, not even major Canadian TV network has a presence in Ottawa. Only CBC and CTV2 produce a local newscast for the region.
Being a big geek, I did get to drive up to Camp Fortune in Quebec to see the replacement to Ottawa's famous "Ryan Tower." It's a pretty cool piece of engineering. Lite-FM wasn't located on this tower though. Instead, they were on a rooftop from a building in the City of Ottawa. That might have also been problematic for them.