While I agree that the original intention for MVS cartridges was purely functional and for operation in the arcade environment, so was the intention for Baseball Cards to be placed into the spokes of kids bicycles to produce cool clicking noises while riding. But that is by definition what we call true natural collecting; not "forced collecting" such as the case when items are promoted, marketed, and released as "limited editions" and "exclusive versions", etc.
I have always preferred & applauded those who seek & find the enjoyment of collecting in items that were never intended to be as such. These kits & carts were not made or seen for that purpose. Yet, those of us true collectors enjoy presenting them on our on shelves. And there is absolutely nothing wrong with that.
And lastly, that is hands down, the most beautiful English MotW MVS labeled cart I have EVER seen!