We have had several clients in the past that want to be listed for every keyword and variation of keyword that they can think of, and we often have to tell them that too many keywords can dilute the performance of the campaign (after all, just because they pick a keyword doesn’t mean it automatically goes to the top of the rankings, there is a lot of work involved to get it there!).
Of course, if they want to throw extra money at the project then thats their call, but we usually advise against this unless there is the financial merit in doing so.
Simply put we want our clients to see Search Engine Optimisation as an investment and we want them to be extremely happy with the results. By putting time and effort into ineffective keywords can hinder the performance of the entire campaign which means unhappy clients 
For us its quality over quanitity ever time………..
