[khalll]

Buy Bitcoin for 50k and sit on it. Not even kidding. :)

[MildlySerious]

Only if you have the calm and patience to sit through a major dip. Or wait until then to buy.

Bitcoin as an "investment" is a lot more volatile than most other options. But, as of now, also a lot more profitable.

[gesman]

and/or diversify BTC with Monero