I really believe only a few people understand how valuable something with a truly limited supply is... Nothing has ever existed like that before.. ever.
Not quite true. Being limited in supply doesnt make something valuable. There must also be demand in the markets. It is a possible scenario that some day another cryptocurrency will replace bitcoin and people dont want to buy bitcoins anymore. Then bitcoin has no value whatsoever.
i would assume if this were likely, one of the billion alt coins would have already done it. i think the fundamental question here is bitcoin going to be a myspace/facebook thing or more like a letter mail/email thing.