I would not say that these video cards are outdated, they give 14-15 megaheshes and consume very little energy.
Their only drawback is that they occupy a lot of space on the farm. It’s not profitable to buy them for mining, but if they mine for a long time, then I don’t see any reason to get rid of them.
Buying would be better now, I'm not interested in it, could you say how many digibyte can I mine in a month with antminer T9+ 10.5T?
Shoud be about 70USD without electricity costs - and about -29USD with electricity costs.
https://whattomine.com/coins/113-dgb-sha-256?utf8=%E2%9C%93&hr=10500.0&p=1370.0&fee=0.0&cost=0.1&hcost=0.0&commit=Calculate