Nowadays many people buy dip and sell it back to the pumping hall. May take longer or less time to reap benefits. It totally depends on the investor. Because an investor will depend on how long he will hold his investment. But usually I keep the investment for a long time and it is able to get the maximum benefit, because the longer the investment period, the higher the benefit.
It will be best or more better to say that the more quantity of Bitcoin and the longer the investment period, the higher the benefits, it will be very wrong to prioritize longevity of your Bitcoin investment without talking about having a sizeable worth of Bitcoin within those years of waiting for your investment.