51% attack is not so easy to be made.
Dogecoin is based on brand new litecoin source so its not so like in "early" years.
It's a scrypt coin nothing else.
If the price doesn't follow the hash increase miners will quit and those who aim at the 51% will remain , even mining at a loss until they make most of the hash rate
You don't need to throw 10 000 gaw miners at the chain at once , do it slowly and you'll manage the same with far less costs.
The question is , why do it at all?
everybody talked about 51%,
but they don't consider why people would do this.
indeed, you ruin your self while you conduct a 51% attack.
If you want to crush the coins , that's your objective.
And the main fear is about governments trying to supress them in early stages.
For them , it will take pocket money to launch something like that.
Even buying 51% of the coins for pos coins , it's no problem at this stage.