A gamble that's more certain to come out the way you wanted, way better than walking into a casino and play some poker games, or invest on altcoins, I bet this isn't the first time I read something similar as this, some time in the past when Bitcoin wasn't closer to $20,000 people said its a gamble too.

Your advice isn't that bad but this is the type of risk that's worth taking, I will rather safe my hard earned money in BTC and leave small amount in my bank account, in two years or three the value will still never be the same.

Shame that this is coming from a legendary member, the best advice is have some BTC and still have some valuable assets out of BTC, maybe stocks or real estate or others but having BTC is better than saving money in the bank.