Currency issues are a mess and something that no manufacturer can control. I believe back at the end of 2002 and beginning January of 2003, the value of the Canadian dollar it US Dollar was about $0.62/$0.63. I bought a lightly used 14BSST and 6BSST later that year, which were manufactured and sold at a favorable exchange rate, at very good prices. Over time, the Canadian dollar crept about even and then retreated.
Result of your query for CAD/USD
Year Average Rate
1990 0.857188
1991 0.872637
1992 0.828136
1993 0.775451
1994 0.732021
1995 0.728802
1996 0.733274
1997 0.722222
1998 0.674779
1999 0.673156
2000 0.673519
2001 0.646223
2002 0.636723
2003 0.718459
2004 0.770234
2005 0.826569
2006 0.881772
2007 0.935147
2008 0.944173
2009 0.880059
2010 0.970701
2011 1.011464
2012 1.000230
2013 0.971164
2014 0.905912
2015 0.782992
2016 0.704131