Adsense Advertisers and my keyword choices?

Hello and GMorning,

RE: Adsense Advertisers and my keyword choices?

I don't know if this is common knowledge or not but I don't know the amswer and I am just starting out in Adsense and building Adsense sites.

Say for example I pick a key word phrase, any phrase for example ie. "How to become a Home Inspector" How do I know that there are enough sponsors compared to advertisers out there to make this good keyword? How do I know that there are any advertisers out there for this word? Adwords says there are 1000 searches and the avg. cpc is $4.07. How do you know?

What ever the phrase is "bedroom Remodeling", "How to stop snorting gas"?. There is no searches for that last one, I checked, so bad example.

But I did look up and not trying to be crude, but trying to make my point, "Farting Dog", gets 600 searches and CPC is $1.61. is there really some one-two-more advertisers out there that will pay $1.61 for that search phrase and how do you know? Where do you check. I currently use Marketing Samuri and the free version of Traffic Travis, along with Google Adwords tool to cross reference. Can theses tools show me what I am looking for?

I don't want to build a page or a site around a keyword phrase and there not be any money for it.

Don't hate me, :-))