Exactly this, and not just another middleman, a middleman with an obscene burn rate that isn't close to profitability and is incentivized to ratchet up prices as soon as they can.
And then AI procurement has problems on the buyer side. Do I just blindly trust that the model is going to make the purchase as specified? Do I trust the model's search capabilities and objectivity of returning results? How do I know that OpenAI isn't running its own "marketplace", only showing me options to buy that they want me to see while filtering out less desirable options for them?
It's a fundamentally less transparent experience than Amazon.