It's personal man, you're the only one who can decide that. If you have great incomes then why not save it for the future. Or split the amount on how much you are able/want to spent or save.
Yes, I agree we shall spend it only for future emergency use. But if we really want to spend it for somehow atleast we shall
Lower down all our important expenses that can't be removed by this we can savemore for other investments.
I think the first thing to do is make financial manageable. So you can know how much money is idle so you can use for the purposes of spending. I usually use the money idle or unused to spending because it does not harm you of course. You can do this in bitcoin