The price of the coins depends on the trend in them.
If there is a trend its price is growing.
Now morden trand is differen dogs coins. Their price is growing and people buy dogs coins to have more profit.
But now appear a cats coins like this https://twitter.com/angrykittytoken/status/1479171278171000833
May be the trend of 2022 will be a cats coins
Now on dog coins the price grow more than on other altcoins, that is why people buy dogs coins hoping for their future growth.
Meme coins now is a morden trend. May be cats coins will be popular too.
I agree that now meme coins are very profitable. But the price of meme coins depends on the condition of the cryptocurrency market.
When cryptocurrency market raise meme coins raise too.