Personally, I think it was more the price factor especially with the demand in mining that made the cards way more expensive, and when one's gaming setup has a CPU that cost 500$ but a pair of GPU's that will cost them between 2000 and 3000$ for both, they go **** that, I'll go with a single card which is more than enough.
GPU makers don't mind since it means that single GPU card setup will run out of steam that much sooner, and make that single high end GPU user change for an even higher performing card even faster that may cost even more, so it's all good.
GPU makers don't mind since it means that single GPU card setup will run out of steam that much sooner, and make that single high end GPU user change for an even higher performing card even faster that may cost even more, so it's all good.