I am using three flatform to store my bitcoins,blockchain for all my transaction,yobit for buying alt coins and of course electrum wallet as a desktop wallet,you should not put all your eggs in one basket,bitcoin is an investment a very good investment ,every bitcoin we have now is precious as the price could go up in the future..
same with me. I keep some bitcoin in different places, not in one wallet, really what you say, it is very risky if storing in one container, if we hacked all our money will be lost