Ok, very quick question if I may. I've just done a search for a term on the GKT and the exact local results were 27000, however, the CPC was only £0.29.
Is this type of ratio worth investigating further?
Depends, is it a product or service or information for example someone could search for cheddar caves, 27k UK exacts is good for a product or service but for information it doesn't mean it could be an earner.