According to this article from The Independent, the U.S. government is selling off helium from the National Helium Reserve. This is making helium artificially cheap, which causes overconsumption, which could lead to shortages. Federal law requires all of the helium in the reserve to be sold off by 2015. According to the article, some experts are warning that Earth's supply of helium could be depleted within 25 to 30 years.
This got me to thinking that it might not be a bad idea to buy some helium. I wonder how one would go about this. Party stores sell helium tanks. I wonder if it would be a good idea to buy some and put them away for a few years.