It's true. I'm not good at picking coins that are going to pump so I always check the coins that are currently peaking at the top 30 to see if I can do an arbitrage. It really offers big profit but the risk is always there and it always gets me frustrated in trading.
Same is happening with majority of the users. Some used to pick the altcoins in a random manner, while few used to have better research about the price moves and then select the altcoins. Here too, finally the user who has got luck profits big experiencing good growth on the altcoins that he had invested.