And what does that tell us? In my opinion, it tells us that most people are fully aware all other coins are not really much better than the cryptoking. Bitcoin, even despite its well-known shortcomings such as slow confirmation times and high transaction costs does its job pretty well. Some coins are faster (like Litecoin), some have special features (like Ethereum), but people need a reliable and trusted currency which does what a currency should minimally do, that is transfer value. I don't personally believe in Bitcoin as digital gold as gold is a totally different beast, but Bitcoin fits well where fiat currencies fail, first of all, at being independent from the whims of governments and other third parties (for example, banks).