I think that realistically, companies compete against each other as individuals and compete against smaller companies and individuals acting more like cartels/monopolies, and that's what OP is referring to in terms of hardware purchasing/contacts/pricing. This also extends outside of tech to investing, so it's likely not just tech responsible for this.
It’s classic capex vs opex. I’d keep paying my openai subscription instead of dropping $3k to run a subpar model. If the thing costs $1k I would consider it.
Have they? Aren't they doing a massive datacenter build-out right now? Moreover the massive profits for Micron and Nvidia must be coming from somewhere, and I doubt it's price-sensitive consumers.