Dogecoin is actually being used, and has been for awhile. But unlike bitcoin, there is no limit to the number of coins that can be created. So there’s no fundamental basis for its value to increase. Current market run seems to basically due to celebrity tweets and media attention rather than any real value created by supply scarcity.
So in my opinion, this pricing run is irrational and will come to an end at some point. Of course, there’s no telling how long it will remain irrational and how far it will climb based on hype. But the underlying case for bitcoin value is much stronger over the long term.