I hope this brings more understanding to y'all as it will to myself... thank y'all for the reply so far... corrections made already and I await more of your thoughts and replies about this !
Bitcoin has gone passed the stages of been a potential store of value because it already is and that's because it seems the initial target of Bitcoin been a currency is receiving some backlashes due to the government strongly fighting against that form happening because it'll mean they'll lose control of the finance of their citizen and without been in control of power (money) their government won't be taken seriously. Bitcoin is a store of value which is what investors are attracted to investing in Bitcoin. The scarcity of bitcoin (limiting the supply to just 21 million coins that can ever be minted) means that inflation won't be a problem for Bitcoin and the value of your investment can always intact.
The decentralized nature contribute to its value proposition because Bitcoin is different from other currency as they are all centralized but since Bitcoin is different it give those interested in it an alternative to the fiat (centralized) system and a different means of exchange. If bitcoin wasn't decentralized, it won't have been any different from the numerous fiats solution that we already have but because it is different and has a fixed supply it's the better alternative to fiat transactions.