as we know, bitcoin is growing at the moment, albeit slowly.
but nothing lasts forever, so just like myspace and facebook, one day people will abandon bitcoin to go to another system e.g. fiat money.
what will you do then?
For there to be another big currency that people would jump to that currency would have to have the same capital level bitcoin does, currently no other crypto currency has 11 million coins in circulation.
Well, Feathercoin has 28 million, some stupid canine coin certainly has more than 11 million.