If there will be eth asics then we will switch to other crypto. Anyway, we decided to invest and we think that it is still a good time to do it. We just want to solve the possible issue with the temperature during summer in the cheapest way possible.
I invested 70k in gpus mining 7 months ago and it was the same, peoples told bunch of things(speculation) and now I got my ROI...
For the heat, it's simple, something on the roof to get out the heat and hole at the bottom to get fresh air from outside. You can add AC to reduce temp of your room during summer. It's important to respect ventilation rules.
best advice here , gpus are a safe bet you can always sell them if you want out and the waranties are long