You've mentioned Bill C-31, which has to do with the bogus refugee claimants. We had someone from CBSA here back on February 14, and in terms of removing someone from Canada, he talked about general costs of $1,500 just to remove them—I believe it was $15,000 if you had to have someone escort them out of the country.
It's interesting that you've mentioned the large costs associated with Bill C-31, but outside of people coming to Canada and just claiming refugee status when they're not refugees, this eTA system will actually provide general savings in different areas.