I am not too brave for DOGE at 40 Satoshi because seeing the amount of supply that is so many maybe around 30 Satoshi is the safest point for me.
But that is according to you and you must be sure of your strong determination. yes!
30 or 40 satoshi doesn't matter.
The price range is safely one, in my opinion.
Of course, it is always better to buy at as cheapest price as possible.
Cheap is in general terms and the object must be fixed on a special word.
Let's look at a low price coin like: RDD, SC, STQ, NPXS, they are always stable at the current price.
If the DOGE drops to 30 Satoshi, all of the coins above also go down in the price.