Well, unless you're working for government and next year's budget depends on this year's expenses.
Most modern people need search engines. And most people don't care about advertising and having their private data sold. And most of those who do are happy to use adblockers and/or free alternatives to Google that still show ads, but may or may not collect as much data about you.
So it is indeed a niche: People who want to pay for search and AI, when both of those are "free".
As for having an AI broker instead of getting it straight from the model companies: I think the economic incentives are better. I don't want bloated answers, just because the model companies make money per token. I want to either pay for each token, or pay a lump sum to somebody who optimizes the result for me and pockets the difference.