Yes, it is worth buying Ethereum. Ethereum is a smart contract platform that enables developers to build decentralized applications (dapps). Ethereum is also a decentralized platform that runs on blockchain technology. Ethereum is different from Bitcoin because it allows for smart contracts.
Smart contracts are computer protocols that facilitate, verify, or enforce the negotiation or performance of a contract. Ethereum also has a token called Ether (ETH). ETH is used to pay for gas, which is a unit of measure used to quantify the amount of computational work required to execute a transaction or smart contract on the Ethereum network.