According to
IPSC Stats web site, in 2010 I participated in 33 sanctioned IPSC matches, including 5 Level III matches.
Say, the average Level I and II in Ontario is $30 and Level III is usually about $100. that adds up to about 28 * $30 + 5 * $100 = $1340 in match fees.
In addition to that, I spent over $100 on weekly club matches (most of the time $2 two times a week) and few hundred more on USPSA matches and even few more hundred more on accommodation when traveling some thousand km to some of the remote matches outside of Ontario.
That is not counting another $1k on bullets and other reloading components.
All in all, that $20 doesn't make any difference.