I've previously had Kagi recommended to me on HN, but I decided not to try it because I know that I personally make well in excess of 800 searches a month, and your ToS states my account can be terminated if "our provision of the Services to you is no longer commercially viable"[2] (which, if this number is accurate is obviously true, as I would just be directly losing Kagi money).
Maybe economics of scale will get that price way down, but in my opinion it needs to be 10x-100x cheaper before Kagi can meaningfully exist as a financially sustainable business for your average Google user.
1: https://kagi.com/faq#cost 2: https://kagi.com/privacy#Terms-of-use