Like they say: how many work at your company? ...oh about half of them!
I think most model articulateds are set up for just one cam. There's two cams, one on each set of drivers but the sound would sound like just one continuous noise. Also, only one motor controls both sets of drivers so they won't go 'in and out' of sink like a full size articulated. Somethings don't scale down well. Kind of like scale handrails: make those scale and 1) you probably couldn't see them , 2) they would be extremely delicate and 3) they probably wouldn't look right.
For me, I consider modeling an art versus an exact duplicate. It's like looking at an expensive oil painting real close: it's just a bunch of paint brush strokes. One looks at it from the proper distance to get the feel of realism without painting each leaf on a tree. Our brain fills in the 'detail' for us.
If you've ever watched Bob Ross paint, you know what I mean.
