You can already run a large LLM (like sonnet 3.5) locally on CPU with 128GB of ram which is <300 USD, but can be offset by swap space. Obviously, response speed is going to be slower, but I can't imagine people will pay much more than 20 USD for waiting 30-60 seconds longer for a response.
And obviously consumer hardware is already being more optimized for running models locally.
Personally, until models comparable with sonnet 3.5 can be run locally on mid range setup, people need to wary that the price of LLM can skyrocket