That's what I've been getting too, that money is a medium of exchange ("trade you $3 for that book"), unit of account ("owning a car worth $2,000 and a guitar worth $1,500 means my stuff is worth $3,500"), and a store of wealth ("maybe I set aside my $3 for a rainy day"). Land and gold can be used for storing wealth but they don't work well for the other two things. The link was interesting though the ten things they listed on the first page had a lot of repeats (imho).
What we were talking about before is how we want the gov't to regulate the dollar's value and pegging on precious metals just didn't work out well.
” pegging on precious metals just didn’t work out well”
Everybody blames Nixon for ending the gold standard but we were headed for real problems.
Nixon Shock
http://en.wikipedia.org/wiki/Nixon_Shock