However, if it does rain and fill up the dams, the water will be worth virtually nothing again. So can somebody please explain to me why they are wasting all this money?

Wouldn't it be better spent on more dams - for when it does rain - or maybe hospitals, schools, roads, rail. Something that will really help the people of Australia. Instead of just making themselves look good in the eyes of the Greenies and Conservationists, it's time the average Australian - who usually just goes about his or her business, goes to work and lets these people have all the say - to stand up and speak out against these ratbags - before it is too late. Come on Australia -WAKE UP !!!