After the halving, many ASIC models will either become unprofitable or give very little profit. And in order for large companies to use all the power for maximum profit, they will turn off thousands of old ASIC models.
And what will happen to these ASICs next?
Will they be sold to other countries or disposed of?
If you want to buy a used ASIC now, don't do it. After halving there will be a big discount on such ASICs on the market.
Unfortunately, scams might happen here. I see some ads on local websites and the price is ridiculous. Still, people buying these old ASIC's. I don't know what they do with these old ASICs. I feel like the buyers are new who don't know anything about these ASIC's they are buying. Or they are doing it as a hobby and has access to free electricity. I don't know what else could be the reason for buying these ASICs.
I feel like some people buy those ASICs in bulk at cheap prices from those mining companies and then sell them unit by unit at some higher prices.