Why would I want to keep BTC in my investment portfolio? That's most hyped and quite overvalued coin I'd say.
There are other more technologically advanced coins. Is it because of "digital gold" and store of value properties?
As an investor holding bitcoin is not just keeping your bitcoin or saving it, it is also a strategy for all of the investors to hold their bitcoin so it can continue to grow through time. As long as it does not reach your desired profit, you can keep your bitcoin. Keeping bitcoin can also be useful for your future if you really want to save enough money for your family.