The title says it all. Should you aim for #4 for each keyword? #8? Some other rank? Thanks in advance. Johnny
If you are going to use the content network, you have to test it. Your product will lkely determine what position you want to shoot for. If its something that may be easily confused with other items (say, "roller"), then you may want to consider shooting for a lower position and advertise on select locations. If its a very specific word (say, "tarantula"), then aiming for a higher position might be worth the extra cost. There's only one way to know for sure and thats to test it.
If volume is an issue look to get in spots 1 - 4. After you drop below 4 volume can drop off substantially.