Now meme tokens are very popular because they allow earning even more money than buying other coins and tokens. A lot of people pays attention to meme coins because it is funny and profitable, like this https://twitter.com/defidotoken/status/1438810085636116482
Trading allow to earn a big money. Just see how many now exchanges and how big are trading volumes on exchanges.
There are DEX, CEX, P2P and exchangers. Now people have a big choice of tools on how to buy a cryptocurrency and to trade cryptocurrency.