I think DogeCoin need a leap of faith.  Hey, look at Bitcoin when it is launched, everybody was laughing at it.  
And now, people jumping crazily into it.  What does this tell you?  It is being recognized and the value have went up almost 1000 times.

Bitcoin will be still around for a long time.  But you got to understand, Bitcoin is limited in quantity and limited quantity of 21 millions to be mine.
But Dogecoin is not. Even now, Dogecoin is growing in value slowly.  In a few years time, it will be a small brother of Bitcoin.  
There are different currencies in the world, I think there will be also different Altcoin as well.

Look at the financial crisis of 2008, Feds created or printed One Trillion dollars out of thin air because it is a Patrol Dollar.
And everybody is accepting it. Why can't it be Dogecoin?  And Dogecoin depend on Supply and Demand too.

As long as Dogecoin is stable and dependable usages for commerce, it will remind.