Do the same thing with V3 and the shoulder outline shows the polygon facets. The V4 mesh is a lot more balanced but has the highest mesh resolution on the face as well.

The whole point of more polygons is to support detail. You can get smoothness with a lot less than 10,000 polygons. You are likely to have issues with muscle and tendon detail though.

It all depends on what you want to do. Syntrifid, if you are happy with low poly count meshes and they let you do everything you want, more power to you. On the other hand King Kong from the movie a year or two ago was made with 64,000 polygons for good reasons, I'm sure. I happen to want a level of detail that is in line with a 40-50,000 polygon model. As I said earlier, polygons are cheap so it is easy to afford the number you need for your application.