Single Keyword Campaigns vs Multi Keyword Single Asin Campaigns

If you have a super limited budget I would say focus on non branded first. We almost always run single asin because again I like control. If you have 20 asins in a campaign you can't control what asins get the most volume even if one is way more profitable you have no control. At scale single keyword campaigns are a pain. Like anyone who actually is doing great keyword research does not want 3,000 single keyword campaigns running in their account. It's not scalable. So we only do this for our most expensive highest volume keywords.