I'm still just working towards powering up my Steem account. I traded a tiny amount for BTC just to make sure I knew how. I'm in the US, so I went Blocktrades -> Coinbase but I'm not saying that's the best solution. It's just what I did. I'd love a less-clunky and fee-taking solution.
I guess you have to define your goals. IMO, even if the value of other cryptos fluctuates, we can still (hopefully) achieve positive growth here in our Steem accounts. I don't think Steemit is a get-rich-quick solution for must of us, but I believe it has potential. At least, I hope it does.
II thought to play with my steem earnings a bit around, why not trying other coins? I am not really in trading business.