wierd thing about adwords

i was looking up some keywords for my ppc campaign, but i dont understand something, when i add the keyword and try to estimate the system says that the minimun is 5$ for that keyword,but if i look up on google search engine there is nobody using that keyword for adwords,

Why do they want 5$ per click?

 

hehe, welcome to the wonderful world of Google's Quality Score...Basically, they don't think that your page is relevant enough to the keyword that you're trying to bid on.

 

Adwords does not update your campaign immediately, so add a keyword, put a bid that you want to pay for that keyword and wait about 2-3 hours until Google analyzes your campaign and keywords.

 

Also, the minimum bid changes everyday, so monitor it closely and see how low it will let you go.

 

thanks for your help