Nothing happened to Doge but as whole cryptocurrencies finally succeeded to get attention of the investors. It is reaction of a sudden interest and rush and every altcoin is selling like hot cakes. It is being used widely these days invest in any coin and get sure profit. Doge is a long runner and has pretty decent supportive community. It's chances to keep growing are much more in current scenario.People are putting money into anything that even seems legitimate. In a way it's good, more and more people are discovering the markets.