Why not buy gold if that's what you want? What is better than gold about bitcoin? I never really understood this argument. I see some value in bitcoin but it doesn't have the same properties as precious metals: bitcoin value is only based on faith (so from this point of view it's not too different from so-called fiat currencies), there is no natural demand.

If you have gold, silver, platinum, you will always have at least some demand from the industry. Even if the majority of the current market price is due to speculation you still have an actual need for the metal. That's not the case for bitcoin. You could have the market losing faith tomorrow and it's done, your coins have zero value.

Crypto assets are their own things, it's not helpful to associate them to something that has different properties such as gold.