In the German subforum I had started a thread to collect reasons to support Bitcoin other than the price. Actually a very similar premise to this thread
Eure besten Argumente für Bitcoin - außer der Preisentwicklung 
("Your best arguments in favour of Bitcoin - except the price")
Some of the best posts I remember are, apart from the often mentioned advantages like censorship resistance, limited supply, ability to create an account which can't be canceled by a bank, and independence from governments:
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BTC has advanced the science about consensus mechanisms,
- it is a kind of democracy for money, where all users can bring in their own ideas to advance the protocol,
- it has a "healthy" influence on other forms of money, including fiat: its existence as a competitor ensures people do not depend entirely on fiat, and thus fiat has lost its monopoly
- it is the first truly global form of money, available for every citizen of all countries.
Feel free to translate the thread, there are lots of other interesting arguments
