First of all, not financial advice. :D Keep in mind the fact that 12 wallets has the half amount of the whole Dogecoins (called as whales) which makes Dogecoin a cryptocurrency manipulation tool for the whales. Besides, the number of the coins total is not constant, everyday around 14 millions of new DogeCoins are produced which is actually something different than Bitcoin or the other Blockchain based cryptocurrencies. Nothing cannot be exactly claimed about the future of DogeCoin right now and the fact it created lots of new millionaires is undeniable but I see DogeCoin as unpredictable and unreliable at the moment.