Meme coins are popular because they allow earning a lot of money. They grow in price more active than other coins. That is why they are in trend.
Raise of the price of meme coins attracts a lot of attention to them. Also it is very important to evaluate the coins to know their potential and future profit.
Now meme coins raise in price even more than other tokens or coins. Such big growth attracts a lot of attention of users and people buy meme coins to hold them and earn money.