if the doge became expensive, it would be a very positive thing. but keep in mind that this increase has the impact of elon musk saying that doge to the moon, and most likely he also bought and made the price of doge pump up.
I think it's not that positive thing. You said it yourself that Elon Musk made the dogecoin pump. Imagine if Elon dumps his bags in the market, The followers of Elon who's were mainly driven into the cryptocurrency market and are just holding DOGE believing that the price isn't overpriced will be at loss. The supply of dogecoin is very big for its price and there is no hard cap in mining it that's why I think it is overpriced today.