I've already heard about SBI. I understand it as a way that takes a lot of time. And I think avanwhy wants to save time and spend money.
It does take a long time, but I've build a site with SBI and I've done some with Wordpress. The SBI site gets an average of aout 1,00 hits a day, the others get almost nothing.
Building a successful website has many facets, if you want long term success there's no real shortcut, it's really a combination of time and money. If you have loads of money to invest, then you can engage a web designer and SEO. However you'll still have to come up with the content, which is the aspect of SBI which takes so long. Check this out.