Why do so many SEO provider websites suck?

Three theories:

1)  They’re too busy working on other people’s sites so they neglect their own site.

2)  They’re absolutely terrible.  I ran across a self proclaimed seo “pro” website today (sorry – no link, it would move their inbound link count from 6 to 7).  If they couldn’t figure out why a splash page with no content on it is a bad thing then I wouldn’t really want to have them work on my site.

3) They are absolute geniuses and they don’t want to tip their hand about their awesome black hat tactics.

I’m guessing #1 or #2.  Or a mix of both.  But let us not forget apathy.  Never underestimate the power of not caring.