Some good info there, Nicholas!
I agree, that if that´s the way Wordtracker arrives at their numbers then they are pretty rubbish. That´s why I´ll stick to the free tools.
All these assertions that you´re making though should be made under the assumption of a fiercly competitve/frequently researched market such as gambling in the US or UK. If it was the same industry in Denmark for instance I would assume that the terms and volumes would be much more accurate.