"A few cryptocurrencies are rising in value and some feature faster processing times and lower fees. These are attributes that are favorable for a retail payment system. These upstart coins include Ethereum, Litecoin, Dash and others, to name a few.
The total market capitalization of all cryptocurrencies is $184.5 billion as of November 1, and Bitcoins $109.4 billion market cap represents 59.7% of that. BTCs dominance continues as the most popular and valuable coin. However, Bitcoins market share has somewhat eroded as more coins enter the marketplace and investors diversify their holdings.
Cryptos have different features which means coins differentiate themselves by being useful for specific applications. In other words, many coins arent trying to replicate Bitcoin; their designers are trying to create something original. For example, an ICO may create a new coin that appeals exclusively to the transportation industry or medical profession and so on. The appeal to different crowds will eventually mean more diversification of crypto investments instead of most capital being allocated in bitcoin." - Bitcoin.com
You might have benefited from 1 of the Crypto ICOs in 2017, do you see or think any of the Cryptos will overshadow Bitcoin?