A crypto currency tale.

[Viking01]

https://www.coinbase.com/

[onearmedbandit]

I'm guessing that is the only way to cash out at the moment, sell crypto for cash at a given exchange rate?

Yes, there are a lot of exchanges online to sell your crypto. It's not advised to leave your crypto in an exchange as they are vulnerable to attacks (cyrptopia anyone?) but rather in a physical offline wallet.