You started this topic on a Bitcoin forum... with the increasing prices, people here are hyper-positive about it.
As for its uses that RL currencies don't have, well there's like 1000s of posts/articles written about it. But the one I can commend BTC or any other crypto is that its anonymous, (is supposed to be) fast and secure.
Edit: Also, ref-links aren't really allowed on the forum outside of signatures... just something to keep in mind.