Now you have $100,000 in your account, pure savings, and you don't need this amount of money to cover your daily expenses. Obviously it's good/free money to use at will. Let's say if you deposit the money into a bank and the annual interst rate is 3%, you will get a steady interest income year by year. If you use this money to buy Bitcoin, let's say the BTC drops to $17,000, you'll buy less than 6 Bitcoins. In the long run, what would you do with this money ? And why ?
This one is easy, for me, buying bitcoin is the best option, trust me, I've saved money in the bank before, and I can for sure tell you that 3% interest rate that will be paid to you annually is nothing compared to the profit you will make from bitcoin is you invest that money in bitcoin..
If you know how to trade, you can take advantage of Bitcoin's high volatility in price and make good money for yourself, and since you will be trading with over 5 bitcoins, you have a good advantage over those that trade with smaller amounts, it is highly possible that in one year of trading with 5 bitcoin, you will make nothing less than 3 to 4 bitcoins or even more as profit before the year ends.
Buying bitcoin is the best option.