i believe it's not dead yet. the doge community is active and doing good since a few years ago. then elon musk came and made a high impact for doge price. i think the doge community can handle it even if elon musk is gone.
I think you overestimate Elon's current influence on DOGE. His words don't worth much now and until he makes it as a payment method on Twitter or something like that DOGE won't see a big pump.
The value of cryptocurrencies is subject to high market risk and price volatility you should only invest in products with which you are familiar and where you understand the associated risks. There is currently no use of doge and the people who bought doge deny every evidence and have no future and development opportunities.