There is too much risk associated in trading right now that Bitcoin price is so high, one bad trade and you can lost thousands of dollars, that hurts a lot.
This is not the same as when Bitcoin was worth 10 dollars, so people trend to trade less and less, at least common people.
I personally don't give a shit about volatility, dips or corrections, and unless the uptrend is clearly broken i will not sell one single satoshi.
I think most people feels the same.
Price is high? What do you say at 1,000? 10,000?
People always can buy 0.1 bitcoin. Price is still below $50.