What stops you from buying cryptocurrency mining hardwares?

had some miners but tbh sold half of them, rest are workin but not 24/7. I've invested into company which is mining for me, even with their fee mining there is more profitable for me than i'll do myself (0.15$/kWh in my country) so pointless to waste time/cash just for making it by your own

idk why some people seems trying to answer but actually dont, i mean why they bother to take their precious time to write half ass answer or have no value at all.

ok time to typing my answer, so my answer only talking about btc mining

- at this time , btc is in bearish trending, if your electricity cost more than your profit than its start to risky
- the difficulty is not constant, and by time pass there will be new miner that will be more efficient, hashrate grow and your hardware become obsolete
- asic only have 1 purpose that is for mining , it dont do anything else, thats why i believe it will hard to sell your old asic to someone else, when there is more good asic hardware
- i dont have any asic hardware, but from what i see on youtube its so noisy

and i believe asic maker actually have more powerful asic than what they sell today, that will be ready to be running when their profit come too low

Thats why i always hope any community reject asic when they come to their coin, because when they accept them, then their coin will be in asic maker mercy