What's the minimum exact match searches you want your search term to reflect?

Also, if a search term is 'australia' and brings 9,000,000 exact (exaggerated)
if available, would australiaaustralia.com.au be good?

Simply doubling the word?

It really depends on the keyword and sector for me as to what is the minimum number of exacts.

No, doubling does it make it any better. You could have any keyword followed by Australia. I would try and create a brand instead of repeating the word. ie myaustralia.com.au

sex industry. 5,400 exacts

BTW thanks shaun.

If the KW you are looking at has 5,400 exacts in the sex industry and you can monetise it, snap it up!

Sorry Shaun.

It actually has 2,400 exacts. my bad. still snap it up?

by monetize it, i mean open a site based on the keywords.

have you used Google Insights for Search ? @ http://www.google.com/insights/search/
you can compare search volume patterns across specific regions, categories, time frames

Cheers
Corey

I need ananswer guys. Should i buy it? it has 2,400 exacts.

Please tell me! thanks heaps for your advice so far.

Go with your gut and if you think it has value, register it and flesh out a site. Testing and succeeding/failing will give you experience and that's worth more than another persons opinion by far.

i just want to on-sell it. not develop it.

Do you mean you are going to register it or buy it?
What exactly do you mean by 2400 exacts?
How do you come up with that figure?
What is the extension?

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Joes.com.au