With run-away prices, you will always have shortage at both sides,
Well, at least now I understand your argument, although I don't agree with it.
That really doesn't make any sense unless you mean that at high prices willing buyers will be scarce. But that's just price discovery and it doesn't make a crash more likely
Okay, let's look at another example
We basically have a sellers market with Bitcoin transactions, i.e. buyers (Bitcoin users in this case) are competing between themselves for the early inclusion of their transaction in the next block. In this way, they are constantly bidding the fee up, right? But does it mean that every transaction with the fee above average gets included if there is a jam (which loosely matches the shortage of bitcoins)? Nope. You have to bid significantly higher to get your transaction included soon. This leaves a very long tail of a relatively small number of transactions with very high fees, and it is the same with prices and orderbook bids. Anyway, if you look at recent Bitcoin corrections, you will see that I'm in fact right, and with rising prices volatility rises even faster, in relative terms as well
Let's just say that I eagerly hope you're right