Yes, and one good advantage of altcoins is that they are very cheap, you can get them cheap, and there’s a possibility that one of them may grow in value exponentially.
Also, altcoins have different purposes. Some have the same use case as Bitcoin, but with some supposed refinements and improvements (e.g.Litecoin, more faster transaction speed ). Others implemented more privacy features (e.g. DASH, Monero, Zcash)etc.