Yes, It obvious that when the price of crypto drops people buy more, but remember that if every crypto participants or enthusiasts decide to wait untill prices drop before buying, it becomes slow demand and completely poor supply, and consequently, price crashes more leading to more losses. I think that investment decisions depends largely on the strategy adopted. Some people decisoin are based on short term investment, while some go for long term, and the investing decisions depends on the options of individuals, whether to buy coins during the bear market period or to buy during the bull market time.