At $10 it’s 1000 unique searches. I search a ton and have it on my phone etc. haven’t exceeded the limit. I am at 600 searches right now, with a renewal due on the 24th.
They are writing a search engine from scratch. They don’t just randomize bing or google searches. So I think you may be underestimating the operating and especially development costs, probably hosting costs too.
But to each his own. Also those streaming services you mention. They don’t really turn a profit, and definitely don’t on subscriptions.