I also like tools like Honey or CamelCamelCamel, which show you the actual price changes over time, and you can decide when the right time to buy is. Obviously, you never know when something will go on sale in the future, but it at least helps you see how good the current price is compared to the past month or year.
I’d argue that Perplexity is in this camp as well. It’s my go-to for anything more open-ended or for multi-step research I need to do. No need to wade through garbage search results, and it cites its sources. Kagi seems to be doing very much the same thing, but in addition to their paid search engine service.
I don’t know that I’d switch from Perplexity, but I could see an argument for it.