It'll definitely be interesting to see how people come to think about money if it ever comes to that. "How many satoshis for that doggy in the window?"
My prediction is that most of the crypto currencies will end up being for specific things. Like the value of a token that you use to transfer a home title will be decided by the market and still bought with fiat. The token will be held as investments and rise and fall roughly in tandem with the housing market. Then mortgage/title companies will no doubt try to buy them all up, etc.

https://ujomusic.com/ is one PRO interrupter I found. I think I came across another one, but it looked pretty early in development. I signed up for their newsletter yesterday, but haven't gotten an email from them yet.