But what I like most in bitcoin is potential. Bitcoin can become something great, I mean it is great now for us here, but great for everyone on this world, maybe it can become first global currency without any borders, and maybe one day we can use bitcoin in every store, shop, coffee shop, etc in this world.
I would add only that for making money on bitcoin you even don't need to invest your own money for the start or to be some big brain in trading or a gambler with currencies difference. Everything you need is just invest your time and only from that you gonna have some profit.