People with money to invest will throw money at it to build it, but who is the customer base after that? So one guy eventually controls the stock market, why would I as a human want anything to do with that market? Why would I invest my earning into sustaining a machine that ideally is extracting every cent possible without leeway and funneling it up the pyramid? Unless I start at the top, ill never really go meaningfully higher.

Instead I can spend far less to use my 200 iq machine that already exceeds everything I could ever want. Im not ever going to personally fund a war of intellegence against other intellegences so anything more is of marginal value. The same reason I don't own a 2,000 horsepower truck or tractor, there are almost no uses for me to want it.