Saying that BTC provides nothing other than itself is too reductionist -- indeed the Playstation Network also provides nothing other than itself, the ability for users to play online games with each other. If bitcoin crashes tomorrow, it will still have enabled censorship resistant, peer to peer value transfer for millions. People use it to pay for games, buy things, sell things, donate and preserve the value of money earned in depreciating fiat.
I would argue that BTC has provided significantly more value to its millions of users in its 12 year history than Playstation Network; What is PSN really -- a matchmaking service, and social contact platform. What is a global, peer to peer, censorship resistant, non-government fiat backed economic system worth?