1. Decentralization
Bitcoin moves without an authority from the following
* Government
* Bank's
* Or Company
This has helps in making the network resistance system to restriction and single points if failure.
Decentralization to me is the second most important attribute of bitcoin. When decision making does not lie in the hand of one person, a few strong individuals or the government, we can be assured that we are safe.
I least expected that a system will be created where no few individuals have undertone influence and make decisions, it is plainly depended on the general consensus. Satoshi did something so marvelous.
2. Limited Supply
From research Bitcoin has a maximum supply of 21 and above millions coins. Therefore this has makes it scare.
Most users sees the scarcity as a means of protecting it against inflation.
It is a mystery that not more than 21 million btc will be in existence. And it is also amazing that the creator of bitcoin didn't hide some percentages for himself. He earned his quota genuinely by mining.
7. Institutional Interest
If investment firms, examples bank's, public companies, support or invest in Bitcoin, it will increase visibility, and trust in the asset of Bitcoin.
From where we started in bitcoin, institutional involvement was a big dream that seems unrealistic, but today the reality is that institutions have taken over and even some private individuals are already feeling threatened.