for future purpose. but outside of this question, for more altcoins. 
Im saving it for fun and for future use. But most likely im saving that for future use, i believes that we may earn bitcoins now and it is better to save now and stored it , wait untik it reaches high price then sell it.I think more about financial assets than just having fun, I think there's no harm in trusting bitcoin, I keep trying to collect bitcoin and hope that one day goal will only withdraw some bitcoin that has been calculated every month. In this case I try to get bitcoin larger than my main salary.