Censorship or the Free Market speaking?

As much as I dislike Ann Coulter, I do respect her right to say just about any stupid thing that comes into the space between her ears. I don't think the University of Ottawa should have invited her in the first place, but I'm not sure how I feel about her speech having to be cancelled due to "security concerns."
I'd rather have seen her be allowed to speak, and then roundly booed and mocked by those in attendance.
One thing is for certain though, and that is that she, and Ezra Levant and the rest of the para-fascist shriekosphere will be milking this for all it is worth.