Bitcoin is digital cash, but his potencial is very above then the gold, soo some people does use bitcoin to store value against their fiat currency, as well used for saving purposes as well investment at the same time. For me bitcoin is the digital gold, with amazing potencial to grow.
I too think bitcoins got a good potential, but I will never grade it more than gold, not in terms of market price but to hold it for a long term. Gold is gold and nothing can replace it. Bitcoin is another good option for an investment since its prices are more volatile so I don't want to keep more money in bitcoins. Because it has a chance of going up and down quite fast so I will invest more in gold and less in bitcoin.
You don't need to treat bitcoin as literal digital gold because we all know that bitcoin is just LIKE gold but digital version because it is increasing every year and its price is expensive like gold and they are both good for long term. So i think it is considerable for bitcoin to call it gold v2 (Virtual Edition). But the only thing that bitcoin made different from the gold is, we can use it like cash also.