Well you also have to realize not all of use have hookups.
And the "Mugen" Civic style lip is a POS. From all i have read it never fits perfect, people have to re-dill holes. Its just made cheap. Also I know a number of people that have had them and have cracked them.
And the J's racing lip is made out of urethane. Not abs. And its made to fit the CD accord perfectly not have to worry about re-drilling holes or it being to long or short like you have to with the "mugen" lip.