Regularly small amount of bitcoin is saved and the rest will be used for fun. Most of the time gambling is the one in which bitcoin is spend to have fun. Future need of bitcoin is to profit much from it and make a good earning for a better living. I believe bitcoin saving will make ones life to the next level with its strength.
I am saving it both for fun and for future purpose. Now that I am currently a student I am the one buying some of the requirement in my school and some things I love but ofcourse almost more than a half of my bitcoin goes to savings.