Yes, there will eventually be a massive sell-off and the "buy the dip" crowd will not have any money or confidence left to buy. Sell orders will overwhelm the exchanges and those who are heavily invested will not be able to sell. After the carnage is over, some former bitcoin millionaires (now broke) will commit suicide.
Or, price of a bitcoin now will seem an absolute bargain when looking back ten years form now when only the
very very rich and privileged will own anything more than a whole coin (one of only 21 million ever created). There’s potentially an almost unfathomable amount of cash that may move into bitcoins over the coming years. Wait until mainstream investors start buying and the big players on Wall Street start getting in...