I've thought about it several times, enough that I did track my searches for a week. Between work, hobbies, and just life I searched (overwhelmingly DDG and Bing) over a thousand times in a week. (A evening of prep for my tabletop RPG racked up over a hundred all by itself.)
I've bailed on Google - wading though the flood of SEO'd garbage just stopped being worth it. Bing and DDG have been mostly working, but I definitely feel like they're missing something. $10 a month is definitely worth it to try it out, and if it works for me, worth it to keep paying. I'd been hesitating because worrying about my search count seemed like a substantial negative for me.