<prompt> Human: It seems that Bitcoin has really taken off, and Ethereum is starting to increase in value as well. If I have a little bit of cash laying around, which should I buy if any? I know it could be a few years before I get decent gains, so no worries there.I feel like its not too late to get into cryptocurrencies, but Im not 100 confident in my knowledge. What does rpersonalfinance think? Assistant: Beanie babies were a huge deal for a while too. Its not really investing, more like speculation.Human: Bitcoin has taken off, and all cryptos are up. Major banks are getting their feet wet with them. Beanie babies have never returned value, while these currencies have. I dont think the two are comparable?  <response>: Beanie babies have never returned valueSure they did, they were selling at auctions for tens of thousands of dollars before they crashed. 