I disagree completely. In most ways, the nominees from the Democratic and Republican parties are incredibly similar. In fact, it's quite difficult to find any substantial differences in the campaign promises of either Obama or McCain, once you get past the different tones they use to the actual meat of what they say they will do. Clearly, there is a large number of Americans that feel poorly represented by both candidates, and this leaves an opportunity for the formation of serious alternative political parties. When we factor in the revolution taking place in media distribution, it's quite possible that we are in for some serious changes in American politics.
Paul has a heavy economist and foreign relations background from the committees he's been a member of in Congress, combined with little hesitation to speak out without fear of ruffling feathers, and this has allowed him to articulate proposed radical technical changes to the structure of our country which get at the heart of the situation we currently find ourselves in. Those types of ideas would not have come from most party apparatchiks, and while it's easy to argue that they are impractical and beyond the scope of the powers granted a US president, they have illuminated some of the fundamental problems this country must wrestle with, and exposed a large number of people to some of the workings of our government, which is never a bad thing.
The fact that we're having discussions on monetary policy, the US's role in the world, and other serious issues often glanced over in most political debate is worth a great deal to this country, and anything that helps more people get involved in their government can only be to our advantage, regardless of ideology. Politics as usual as covered in classic media has been extremely shallow and limited up to this point, and we're witnessing a great shift as populism controls the distribution of information on the internet. If the Democratic and Republican parties can't tell which direction the wind is blowing, and fail to adjust their trajectory, then it is entirely possible that they might start losing support in favor of new groups.
Either way, with such a fundamental change in information distribution taking place at the national and global level, it's foolish to count on historical trends alone to predict future outcomes.