I just think all these keyword tools are full of bs. Take keyword discovery i have a term i rank 5th in google, discovery says it gets 160 a month....i get 160+ a day from google. another case i ranked 1st for a term getting 300 a day by discovery and was only getting 5 visits a day. I think your almost better off asking yourself what you would search for if looking for that subject
Skip, I have had similar experiences myself... I know some of the numbers are skewed by webmasters searching themselves to see how they are ranking and stuff similar, but I look at is as a kinda "hope so" tool
They get their traffic data from downloaded toolbars so it's not a surprise that their numbers are so off.
which keyword discovery tool you are using for this? I've also been tired but once i got this tool: http://www.keyworddiscovery.com/search.html it is almost okay and i am pretty happy with this tool and hopefully you'll like it if you didn't use it yet