I love working with models I know, as most of you do.
The workflow is known, you know what you’re gonna get, and it’s often quicker than with a model you don’t know. However one of the things that’s very important is that when someone looks at your portfolio, books a workshop, or will give you assignment you have to offer as much variety as possible. Because let’s say your “soon to be client” doesn’t like model A and your whole portfolio is filled with this model, it could very well be that you miss that assignment.
However most of all I think working with new faces is just way too much fun to be “forgotten”.
A new person in front of the camera is (at least for me) always a challenge, “let’s see what she/he can do”, “Let’s see how she/he reacts to jumping/expression etc”.