Hello!
Why aren't many companies creating ASICs for mining?
Well, I'm not really sure. ASICs are a huge market right now and there is huge demand for a low supply. But, a couple reasons could be:
They are expensive to design and manufacture
The chips and design take months to years to create/manufacture
If a new company designs and publishes an ASIC, by then ASICs could be out of style, useless, not worth the money, or another company could've made a better one
Do you think of anything that I missed/could be a reason? Comment below!