I don't think both are not important as far as I am concerned. Literally, I can say we have the best Investment asset alive now i.e. BTCitcoin, and if you are talking investment you are definitely looking at returns which to most Bitcoin investors is the amount in Fiat currency they can get to spend on personal needs and that is just about a lot of countries where you cannot spend Bitcoin directly on daily needs.

As you can see that both are important even if it was just in this term.