The most successful cryptocurrency for storing value continues to be Bitcoin. As the most valuable coin in the world by quite some margin — and the progenitor of the entire cryptocurrency revolution — Bitcoin has proven itself. It enjoys far more recognition than any of its peers, and that makes it easier to buy, store, and sell.
That’s not to say that Ethereum and its coin, Ether, have been ineffective. For such a young currency, Ethereum has proved to be one of the most popular. At the time of writing, its market value and 24-hour trading volume are second only to Bitcoin. However, the actual monetary value for a single ETH is currently less than 3% of Bitcoin, so owning a few Ether is no way near as pleasant as holding a few Bitcoin.
Part of that is down to Bitcoins’ built-in scarcity. There is a hard limit on the eventual number of Bitcoins, with diminishing returns for miners as they approach that mythical 21 million mark. One day no more Bitcoins will be created, and no matter how many end up being lost, no more will be made. Thanks to supply and demand, Bitcoin should, in theory, grow in value, at least until no more coins appear.
In comparison, Ethereum will continue to release the same amount of Ether regularly forever, so its supply will remain constant and expanding.
Cryptocurrencies are nothing if not volatile, though. As much as it seems most likely that Bitcoin will remain the king of the cryptocurrencies for the foreseeable future, there is no guarantee of that.