Why would llms replace search? It was a crazy take in 2023 and is still one today. Suppose there are no search engines and you want to find some headphones. How exactly are you doing this with llms?
Personally, I use an LLM to use the search engine. I don't know how this impacts search revenue. It might increase it!
Actually no, LLMs (preferably tool-using LLMs that can themselves do web searches and price lookups) are a great way to shop, especially if you're looking in a category and don't know exactly what item you want.
You just say "I want to find some headphones" and it makes you some recommendations. Or it helps you nail down what you're looking for first and then gives you options at various price points. I've found this useful when shopping for cars, computers, tourist activities, and much more.