The hype around bitcoin I agree isn't like Tulip. We are constantly being told that bitcoin is in a bubble but we have heard that from the dawn of the existence of the blockchain.
We have seen this slow growth over the users with a few stumbles only when the volume of transactions where minuscule compared to now and as time goes the volatility will decrease.
However I guess we should all be ready for the worse.
As Satoshi Nakamoto said: I'm sure that in 20 years there will either be very large transaction volume or no volume.