Excellent points, particularly that point re "scalability." As you say, it was the start of mass awareness and the consequent mass adoption. So, there was a major spike.
Of course, such growth is unsustainable – in various aspects. So, since then, we've had what they call a "correction." That implies that the current price is the correct price, for this time and for the time being.
It also implies that, after the correction, further growth will ensue.
Keep looking ahead!