A pretty bold idea but it could work if you have that much money to invest with and you have a strong emotional capability to handle rumors or news about the coin you invested with. What if let's say for example that the price of a specific coin decrease by 500$, then you invested again your money, and after a few hours or days, it started falling again? You can't keep investing in something unsure unless you are really confident about it and also if you are in a tight budget, you can't prioritize investing to this without gaining some returns first.