You were right that Cardano (ADA) is a coin with so much capabilities. The goal of the Cardano network was to create a platform for smart contracts, similar to Ethereum. Having said that, it is a promising decentralized network -  set to a trend of creating improved and more flexible decentralized systems, so owning this coin is a win by itself. A truly worthy pick for your portfolio. This is without a doubt, favorable for long term keeping.