Someone made 100x returns with a coin called Dogwifhat (WIF) and he bought it just because the logo was cute but in a month the investment turned into 100K due to the Solona DeFi market.
This isn't the first time it has happened with random meme coin but a lot of coins that achieved huge returns went to the grave in no time as well so invest in the right coins if you are looking for long-term investment or just take a gamble and it may pays you off once in a while.
To read about 1000 to 100K journey:
Crypto Trader Turns $1K Into $100K on Solana’s Newest Memecoin, DogwifhatTo answer your question, the interest in meme coins will never disappear and this is because that is just how people are, people will always have an interest in improving their current economic circumstances, to do so as fast as possible and to employ as little time and effort as they can.
And as you can probably guess investing in meme coins could in theory fulfill all of those conditions, so meme coins as much as some of us may dislike them will remain with us probably as long as this market exists.