Because of profits chance for that why people interest altcoins. If you are a long time investor then buy btc and best safety. But if you want short time investment profits then buy altcoins. All altcoins will never profitable but a good altcoins never upset you.
The profit factor is the main thing that traders want for short-term trading, but every altcoin has a risk to trade because the altcoin hype is only temporary and the coin will be ignored if the whales have taken profits, so anyone involved in altcoin investment must consider the risk because even the top coins can turn into Scam coins so we are missing important information that has been analyzed by professional traders.