Why I should be buy vBSEO?

I see that vBSEO rewrite the dynamics URLs to friendly but

What other things do it?
Why I should buy vBSEO?

the information page say:

Web Traffic From the major search engines (Google, Yahoo, MSN Search).
Profit Increase the monthly revenues earned from your forums.
Posting Get visitors who are more highly targeted to your content.
Members Better visitor to member conversions (i.e. more new members faster).
Growth Improve your chances of achieving big-board.com status.

But how?

I read that vBSEO is the Best for vBulletin Forums but I not see how it help.

Thank You

We have hundreds of features/options for SEO. You can check them out in our demo:
http://www.vbseo.com/demo/

Our goal is to help your forum improve its search engine positioning, by:

• getting more pages indexed
• getting pages that are indexed listed more prominently
• getting indexed pages ranked for more *relevant* terms

We do this by applying many different whitehat SEO features, as you can see from the demo. One of the most important aspects you should understand is that of link consistency and consensus.

To achieve this, vBSEO is your *only option*. Here is a great description of how it works:
Pin the Tail on the SEO Donkey (with Link Consensus)!

Think: MMRT -> More, More Relevant Traffic

With vBSEO, your goal is to not only *get more traffic*, but also to *get more relevant traffic*.

By optimizing on a thread by thread basis, you should be able to get traffic from thousands of terms, not just a few of your most highly sought after terms.

Ensuring that your incoming search visitors are landing on a page that *really does represent what they were looking for*, you can expect better conversions.

Note: If they are looking for "bicycle frames" and they land on a "cycle racing" page, it's not targeted quite as good as it should be. Maybe they are interested in racing, maybe not. But they are definitely interested in bike frames. If they search for "bicycle frames", and instead land on a page about "custom engined bicycle frames", then you win!

Why? Because now they found the type of content they were looking for. This can lead to:

a) They register on your forum... because your forum is a place for them to get access to the sort of information they are interested in.
b) They click on your ads. If your traffic is relevant, and your ads are relevant, you are going to get clickthroughs. Because you are presenting an ad that relates specifically to what is their top priority the moment they visit your page.

MMRT

Then all that say about vBSEO it's true.... it's the best SEO for vBulletin

Thank you, I'm interesting in buy it

Welcome aboard Dionisio.