Hi Dave,
Didn't you get my PM on this yesterday? Hmm. I did send one
The problem here is that the keyword you have entered is only priced at $0.13 cents a click for the top ad with Google. If someone clicks an ad further down the page, then the PPC is going to be even lower. By all means, changing the keyword is the solution to this and there are no slapped wrists involved as long as you choose something higher-paying which is at the same time related to the topic, then it should improve the performance.
I love this tool. You can sort by "cost and ad position estimates" and then select "keyword popularity". That way you can see the top-paying keywords searched by how popular they are.
https://adwords.google.co.uk/select/...?defaultView=3
Hope this helps.
Ed