I disagree.

Here's a comparison of the interest of the public in Bitcoin and Myspace. Now consider the value of Myspace in the present and the value of Bitcoin in the future: http://www.google.com/trends/explore#q=bitcoin%2C%20myspace&...

There's no telling what will happen to bitcoins, but my point is, interest is no sign of value. Now if I could invest in cats, that would be a different story.