All things are relative, with rising prices on all quality chips, if customs are your thing! Then absolutely go with CPC, they are quality Clay chips that will last you a life time. Even after countless hours of play these chips just get better and better where others wear down, get flea bites and other damage. These troopers just keep on performing! Plus it is totally customizable, the mold, the colors, shaped inlays... you name it, they can make it for you!
As others will tell you get samples... don't just choose a mold based off of looks, they all have a different texture and feel to them. Also it is a good idea to share your design and ask for feedback! Lots of chippers here have already been down this road before you and willing to lend a hand where maybe they made a mistake and had to re order chips because they thought in theory something would look awesome but didn't actually turn out that way!
Good luck on your customs journey and hope you are happy with them!!
Fellow Chipper Ben