[nevetS]

vbSEO is a heck of a lot more than just content relevant URLs, but I suppose you know that already. On page SEO doesn't mean what it used to in terms of search engine rankings, and there will always be guys bending the rules in ways that you can't keep up with in order to get the more competitive rankings.

I think it's good to think forward in terms of inbound traffic and revenue, but there is more to building a community than just being found.

If you get something like vbSEO from the start, you'll have less to worry about later on. And if you're thinking about it now, you'll probably be distracted by a need to keep checking it out for a while - so why not just plunk down the money and get it working?

However, there is something to be said for cautious spending. Communities are not money making machines and it'll be a while before you earn enough back to pay for vBulletin, let alone another add-on package. The club of forum owners who earn less than a hundred per month is very large, and the guys who make more than $10,000 a month are few and far between - though they are out there.