Hello AXO Ladies,
I don't believe that there are any active AXO chapters in Canada anymore, so I suppose that would be one reason why I may not think of AXO as much as the groups which had a more prominent presence in Canada.

There are other sororities that don't seem to get much mention:
Theta Phi Alpha, Alpha Gams, Alpha Sigma Tau, Alpha Sigma Alpha, Tri Sigma, Kappa Delta.

I think you're right...most people probably do think most in terms of their own campus, but then again, I think it is only natural that people would tend to do so. I'm not suggest that this is "right", but just that the tendency is "natural".