What are the perceived advantages of bitcoin as a store of value? This complements What are the perceived advantages of bitcoin as a means of exchange?

To some, Bitcoin today is considered "better" than other stores of value. Why do some people think it's a good store of value, or even investment?
Bitcoin has several advantages over other means as a store of value.


They take no space. This means that you can store them in a USB as well as a backups online for example in an email. 
You do not need to pay anything for storing the Bitcoins. There is no need to pay for a secure bank account since they can be stored online or in USB or even in your brain if you use a deterministic wallet. In this case you only need to remember the passwords.
This also means that you can bring them to any country easily without paying any fees.
They are easy to hide. Nobody will know how much you store or how to get them.
This will make them impossible to steal. 
Your funds cannot be seized by any bank or government.


The downside is the fluctuation in value.

But if Bitcoins are here to stay they will increase in value over the years, 
perhaps outperforming many other assets. 
There is also a small risk that they might get replaced by a more efficient cryptocurrency though; so far several have tried but none have succeeded.