I would never have thought I would pay to use a search engine. But realizing how Kagi makes search useful again (no SEO crap, no ads) and how clever some of their new features are, like their Universal Summarizer (to summarize, well, almost anything), their Lenses (to focus on specific content or type of results), barely a few days I started testing it I switched from their free trial to the yearly-subscription. It's great.