I like what we have - particularly the one or two verses that we do sing. I have sung it too often an sporting events, and listened proudly as it is played for Olympic gold medal winners to ever want to change it.
At the Sydney olymics it was my all time favourite ditty
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Waltzing Matilda would be a laughing stock in my eyes as a national anthem. Great song, but it goes too long for a national anthem and says nothing positive on national identity. Just my 2 cents.