Do you think we should buy altcoins now when it is dropping or just wait until it recover back? Also which coin has the most potential nowadays?
Like all investments, it really depends on your goals and timeline.
Speculation and manipulation will continue to cause fluctuations in price including spikes and crashes; however, digital currency is part of the future and we are only on the cusp. As adoption and education increases in this space, consolidation will occur and the most popular cryptocurrencies will hold the most value. Cryptocurrency has a strong future. Depending on your investment timeline, current prices can be an expensive or cheap price. (For example, Bitcoin at $2,600) Five months from now, no one knows. Five years from now, $2,600 will be considered very cheap.
In the short term, I'd recommend holding off on investments until after 8/1 to see how the market reacts to the Bitcoin hard fork issue.