If your keyword already qualifies your audience, you don't need to add In-Market audiences. But if your keyword has multiple meanings or markets, then qualifying your audience is a great tool. Example: Keyword: 2020 Honda. The keyword qualifies the audience. You *don't* need to use audience targeting for "in market for cars. " Keyword: Trust Deeds. This keyword could be used by lenders or borrowers. Use In-Market audiences to adjust bids or exclude irrelevant clicks. Of course, YMMV, but this is how you can generally approach it.