Will bitmain d3 miners be profitable again one day if u pay 7$ a piece for them

hello i am new to mining i can pick up around 15 bitmain D3’s for 7$ a piece i have an electricty rate 0.09 could these be worth picking up to run in the future?

If you need something to hold your papers down, I’m sure they 'll come in handy

kinda what i figured

Not a bad rate but look into some ks0’s or something profitable

I have 2 ks0 pros right now making about $1.25 a day a piece 2 etcmc nodes abiut the same and mini doge III suppose to be here friday not exactly retiring off thay miner “shelf” but have to start somewhere