I just collect it, this time not much I want, so I just held their bitcoin I hold, although not many, and I rarely have time to look for bitcoin. Maybe someday I want to buy a car with bitcoin.
yeah for now we are just collecting some bitcoin to hold so that we can use it for trading , investing and gambling where we can easily double our bitcoin if we got some luck in our side because it always 50/50 if you are trying to double your money , therefor bitcoin helps us with our daily living because we are earning not that much atleast we get something 
Try to collect as much as you can and save it for future, do not invest in gambling as you will definitely loose everything, the safest way to make profits is to save them and sell when price goes higher.