20 years from now, the value of Bitcoin will likely be more than 10x of the current price so that'll be enough money for today's investors. Instead of being concerned on what I'll acquire with my Bitcoin in 20 years time, I'm more interested in investing as much as I can now and when I've made enough profit in the future, I can then decide on the buying things that are more economically demanding for myself and family. And in a case where I succeed to acquire my needs before then and settled the people around me, I'll prefer saving them for my generations to come instead of lavishing my saved assets on material things that I do not necessarily need at that time