You are thinking too much about how you can make a bit more one a sale when all you should care about is getting one more sale. Look at google adwords. Most co

You are thinking too much about how you can make a bit more one a sale when all you should care about is getting one more sale. Look at google adwords. Most companies show an ads for there company name when they are the number one organic search. It is worth it to block anyone else from buying an ad over you and not worth the trouble to add negative keywords for all the ones you rank well with organically.