I'm with you; I'm a paid Kagi user for a while now, and unlike various attempts at switching to duck duck go (et al), Kagi is actually fully working for me. I do not switch back to Google more than once a month, and each time I've gotten "worse" results so far.
Do you stay under 30 searches a day? On their pricing plan it seems users searched a lot more in their beta program than anticipated. 240 searches cost them around 3 dollars.
I'm sold, literally.