What do you think a bitcoin will be worth in 10 years? If it doesn't die (read: get killed), it'll likely stop being a novelty and actually have practical use (currently I have to go out of my way to find a good/service that accepts bitcoins.) Mix that in with a generation of grown "digital natives" and suddenly 100's of millions of average people are now likely to use bitcoins.

As we know, there's a max of 21 million bitcoins (which we won't hit for years) - spread that across ~500 million users, and I think we'll see the value of a single bitcoin be 10x-100x higher than what it currently is.

It'll be a bumpy ride to get to that value, and I think this is the very beginning of it.