Jennifer Garner and Ben Affleck are boring because they have a normal family life, try not to do anything controversial, and don't try to attract attention to themselves.
The Duke and Duchess of Cambridge are boring for about the same reasons, and also because they don't like displaying their affection for each other in public.
I really don't see what's so wrong with being boring, and why it's so imperative to some people that celebrities be complete train wrecks like Charlie Sheen.
Can't we all just be relieved that there are still strong, steady relationships based on love, affection, and trust in these crazy times?
I'd take long, "boring" marriages over short, "interesting" ones any day.