Interest in dogecoin is inseparable from its current level of influence, so Elon Musk made the choice to increase the prestige of dogecoin, this reason is not only about financial gain, but there are other targets that he is pursuing. What's more nowadays BTC and ETH are the top two cryptos that have a big influence in crypto.

Imagine a millionaire puts his trust in meme coins, is this just a financial gain target?
I think Elon Musk is getting interested in BTS and ETH. But being restricted, he started trying to influence the level of public confidence in BTC and ETH first.
The big targets are BTS and ETH, I'm sure that's the end goal.