Something I didn't see anyone point out is that you have to ask yourself what the utility of the altcoin you want to buy is. In almost all cases the answer is nothing except being pumped and dumped. This means when you buy altcoins you are buying something useless that has a value only because of speculation.
When it comes to bitcoin, it actually has utility in real world. It is the only decentralized currency in existence. So at the end of the day bitcoin is still useful which gives it a lot of value.
There is nothing wrong with using all assets to invest in Bitcoin, and there is nothing wrong with not participating in altcoins, depending on personal investment strategies.
In terms of market value, the top ten currencies are all available. Bitcoin's current appreciation space or range is not very large, but the risk is very small, and altcoins are divided into mainstream currencies (such as ETH, EOS, etc.), and I also hold There are some altcoins. Generally speaking, there is no mistake in choosing altcoins.
When choosing altcoins, my principle is to choose the founding team. There are many rubbish coins and scams. I will stay far away.