[recursive]

You've completely overlooked the possibility of a search engine without ads. That's what I use.

[devsda]

If your search engine doesn't have ads that only means the adblocker has nothing to do except use some cpu cycles.

Those cycles are mostly earned back when you visit a link with ads (unless the search results are limited to ad free sites). So, it's still a net positive to have an ad-blocker.