Invest in Bitcoin because it will increment every years ,bitcoin is limited 21,000,000 btc and more and more altcoin was born will kick bitcoin's price growning up never stop.
You should invest in bitcoin because the price will increase in the future and it will result to a bigger profit. In addition to that, bitcoin has limited supply so if you have bitcoin its an opportunity to become rich. Lastly, invest now and become next millionaire in the near future.