Once I have a good chunk of in Coinbase, I will start transferring them into a hard wallet. Plus if Coinbase goes down, cryptos will go down with it, I don't think Coinbase and the people that work at Coinbase don't want to be next Bitconnect or Mt. Gox. I remember the Mt. Gox issue. Yet, Coinbase stands nice and strong. Exchanges will come and go. But I do have a lot of trust in Coinbase, will I have my life savings in Coinbase, no. I will store it into hard wallets.