Board Thread:General Discussion/@comment-24214944-20141007103242/@comment-3096633-20141010231738

Linkmadara wrote: another thing i find wierd is that there over a million aliens in sets of 10 in the Omnitrix but all the other Bens happends to have aliens that Prime Ben have which only make sence for Ben 10,000.

I think it has to do with cost to make new art models.