I think it's subjective. I personally don't have much invested in Bitcoin and if I did I'd probably keep at least half of it in a personal wallet and half in Co

I think it's subjective. I personally don't have much invested in Bitcoin and if I did I'd probably keep at least half of it in a personal wallet and half in Coinbase in case I wanted to cash out at any given moment and not lose everything. At least in my experience, transferring coins from personal wallet to Coinbase can take days. Just enough to lose everything when it hits the fan. Or maybe i'm just a catastrophist. :)