Cragar Mach 8 Spacers

I've thought about it and I cannot figure out why in THE WORLD Cragar would make a wheel like that. It had to be more expensive to make than a wheel that was flat on the mounting face. That's just crazy.
Yeah, the ford guys were saying that people ran them without the spacer, but they always came loose. Apparently the ring is just to hold the washers in the correct position. They were saying that people ran the washers without the ring, but ruined alot of them because they rotated too easily. They recommend gluing the washers in place if you don't use the ring.
Seems pretty cheap to me. Cragar should have just made the wheel for individual applications.