Saving Bitcoin is both, fun and very useful. At the.begininig most of the people probably have collected Bitcoins because of fun and because that was something new and inovative. Now people want Bitcoin because of its value, so now it's more than fun and for some is even way of life and making for living.
But not infrequently also many people use bitcoin for investment only dude, they do not use bitcoin to play gambling, have fun, etc.
They use bitcoin to their advantage and may save it for the future for long-term investment. Just like me, I also just hold bitcoin not using my bitcoin for something certain