Here's some ideas for pk point rewards:
->Like I heard someone else say, cash. This would also increase the total profit of basing.
->gang house extensions, like spar rooms, guild spar practice rooms, convenient gun shops with slight discounts to gang members, ect.
-> (maybe) an alternitive to buying a guild house with iTunes. A large amount of pk points would be needed.
-> a half-hour gold aura.(the pk streak one)
-> an office for the gang leader. It would be automatically given to whoever is the gang leader in his/her menu, and would serve as a base of operations. Would come complete with all the gang house extensions(if that part gets approved) veeeeerrrry expensive, massive pk points needed.
-> for a small amount of pk points, the gang's bullets would become lasers for 1 minute. Y'know, for fun! Can only be bought every 15 minutes.