Iran is facing power outages. Mining always requires a lot of horsepowers which is why this year the new and powerful GPUs are in heavy demand.
This is one of the biggest reasons why the availability of both RTX 30-series and RX 6000 series GPUs are so weak as well as the prices are inflated. In the meantime, miners have now turned their attention to Iran, where the electricity is provided at cheap rates.
According to El Chapuzas Informatico, an investigation by Iranian authorities has revealed that the recent power outages in Iran are due to the growing popularity of mining farms in the country. Interestingly, Chinese companies are shifting their mining operations to Iran because the electricity cost in Iran is 4 times lower than in mainland China.
It is suspected that Iran now houses 14 large mining farms which consume around 300 megawatts of power, almost comparable to the power consumption of a city with about 100K inhabitants. So, while Iran has become a hotspot for miners, it is suspected that the hardware sold to them, mainly GPUs are being directly sold to miners.
As Videocardz points out, these unfair means of sale are not a concern for the manufacturer even board partners, as long as these GPUs get sold. This is the sole cause of why new GPUs are nowhere to be found, it will indeed take quite some time to recover from the worse situation.