Yes, but if you're capable of a large volume of GPU miners in your farm wouldn't that mitigate the risk?
No. Remember that you need to roi on each gpu to be profitable afterwards. It would only mitigate the risk or be worth your time and effort if you could roi before the new gpus come out and the reality says otherwise right now. For example if you had a 2080ti, the most profitable coin right now with it would give you $1 per day net. The cheapest rtx 2080ti card would be around $1200, that would be 1200 days to roi but in reality you can count as 1600 days to roi, almost 5 years to roi as it stands. Likely nvidia is launching 7nm this year november or at latest march 2020.
You can only safely buy a current old tech gpu to be in few months if roi was less than 120 days.
And one more moment. The best ROI was at 1060(3GB), but now new algos require 6-8GB of memory. So my rigs cant get max profit and working only with algos, that they support.
In this way, we need not only calculate ROI momentaly but think about the future.