Dogecoin is fairly distributed and better than 95% of the cryptos out there. For all the hype these new coins have of being great tech, having a great development team and being undervalued, I doubt most of them will be around in 5 years time. I guarantee you Dogecoin will.
From an idealogical viewpoint it arguably a top 4 crypto-currency only beaten by Litecoin, Bitcoin, Monero
From an practical viewpoint its passable.
From a technical viewpoint its not so good.
From an investors viewpoint is the current half of a cent per coin price reasonable and room has room to grow.
As a crypto-coin it is far back.
It will be around in 5 years time because it is s fully fledged blockchain. If it will be around past my lifetime I'm not so sure.