Even if there weren't secondary referrals, it's nothing more than a recommendation, with a discount on your end.
Look at it this way: If your neighbor was thinking about buying the same car as you and asked, "Hey, how do you like that car? Any problems with it?" would you charge him $97 for an answer?
Save up to $96 at Dreamhost with ALMOST97 promo code (I get $1).
Or save $97 with THEFULL97.