Key Points Some cryptocurrencies are far too risky to bet on with your retirement. Although Dogecoin and other meme coins may occasionally go on a run, they lose value quickly once the hype fades away. Ethereum Classic is the original version of Ethereum, but it hasn't had the latter's success. 10 stocks we like better than Dogecoin › In small doses, cryptocurrencies can be a good addition to your retirement savings. Although they're volatile, some of the top coins have outperformed the stock ma ...