It's all Altered Carbon
So, in summary:
The naturally nano-engineered carbon fiber models have better graphics, don't require painting, have more immediate variety, store better, are easier to modify/rescale or build from scratch, are usually cheaper (or free), can still challenge you to build detail or realism, lead you to improve your software skills (design, modify, or just repaint), allow "re-dos" by reprinting a page, and are completely recylable.
Nothing against the cross-linked, hydrogenated, and molded carbon variety - but card is closer to woodworking and building rather than just asembly.
Yogi