Model prices have fallen something like 90 percent in two years, and AI bills keep going up anyway, because the spending moved from the model itself to everything running around it. A chatbot answers you once and stops, while an agent keeps working long after you've closed the laptop. Every task it touches, whether search, scraping, storage, or email, arrives with its own vendor, its own API key, and its own line item that nobody can trace back to the work. Agent demos ship in a weekend and…