Just, i invested Bitcoin and that time even i didn't think about how to use it. Not only for me or single person, saving Bitcoin is good for anyone to become rich. If any necessary things are there, then i will spend. Otherwise, i will keep it safe in my wallet for future usage. Not yet completely decided, may be i will use it for fun purpose or to buy any things only.
Thats what many people are doing bitcoins and trading with bitcoins. Everyone knows about the potential of bitcoins, their capability of getting pumped within no time, leaving investors with huge profit. I agree with you that most common reason of buying bitcoins is to save them for bright future. Bitcoins supporters have high hopes that soon it will touch 5k dollars which will ultimately make them richer.