I'm wondering about "Site Build It" in particular. I've used GoLive to publish a couple of sites, but the search engine submission/optimization, tracking, autoresponder etc. package offered by SBI for only $299 (US) per year looks appealing. They guarantee high Alexa rankings and traffic if you follow their system.
High Alexa ranking is easy to achieve and is meaningless. I would be very skeptical of such a package. You can get good hosting and a domain name for $50 or less. Cost of building site yourself is zero. So the old saying a fool and his money are easily parted ...