I'm fed up of reading articles like this...
http://pandodaily.com/2013/04/10/great-now-engineers-think-that-they-are-economists-too-2/...where some haughty financial expert is poo-pooing the idea of bitcoins because they're not a real currency (and they were unlucky enough to miss the wave). What the author of this article and so many others fail to realise is that bitcoins serve another important service other than facilitating trade. The main point of bitcoins, in my opinion, is a place to store your money where governments and other people who may try to take your money, can't easily get to it. It can't be taxed, it can't be easily devalued and it's pretty hard to steal (unlike a car or other physical asset). For these reasons, it serves a purpose and thus will keep it's value. As for being doomed for defalation(rtfa), that can only be a good thing for investors wanting to put their money in a safe place. And yes of course it will be worthless if people loose faith in it, but that could be said of gold or virtually anything else. The difference is gold has been around a lot longer and people trust it. However, I see bitcoins as being better - as I've already described, they have advantages that other investments do not, so ultimately I see them replacing gold.