Oh yea because Kings are 100% reliable? Everyone always said you can get a good one or a bad one! And costs 2.5X the price of a pro2, also Hope are a UK company and offer unrivaled service, and if a hub gets broken they will normally do all they can to fix it free of charge for you, unlike kings where you have to contact, aiespire (sp?) tech, and get the parts shipped over from the US for stupidly high prices?
Even if money wasn't an issue, I'd probably still get the pro2, because of the customer service and the ease of getting and replacing parts.