Time to share a secret.
Look at this ingenious blog post from Harold Christopher Burger:
Summary for mathematicians: if you make a double-logarithmic regression of Bitcoin, you see that it follows a very beautiful pattern inside a clearly defined corridor.
In other words: Bitcoin grows not exponentially, but its growth rate slows down over time. Boom/Bust cycles hide the pattern.
In even other words: Here you have a way to judge, if Bitcoin is expensive or cheap right now.
Conclusion: There is still a ton of upside potential for Bitcoin.
Happy Valentine's Day!