Now if you added 10 V4's with her morphs to your scene, then each of those V4's will have their own 10,481 kb cr2s, because the morphs are embedded into each of the cr2's. If you had 10 V4's using all those morphs from that one pmd file, then you would have 10 V4's each with a 495 kb cr2, and all of them would reference that one pmd.

So you can do the math - 10 x 10,481 kb = 104,810 kb vs (10 x 495 kb) + 16,746kb = 21,696 kb

Now which scene is smaller?