> if today you told me you had a website that was 100% technologically identical to Amazon, but you were willing to make slightly less money, you'd still have no products

It is widely understood that you really can't compete with "as good as". People won't leave Google, Facebook, etc. if you can only provide a service as good as, because the effort required to move would not be worth it.

> if you show me a product that works just as well as ChatGPT but costs less--or which costs the same but works a bit better--I would use it

This is why I believe LLMs will become a commodity product. The friction to leave one service is nowhere near as as great as leaving a social network. LLMs in their current state are very much interchangeable. OpenAI will need a technological breakthrough in reliability and/or cost to get people to realize that leaving OpenAI makes no sense.