'Walls' Category for Revit Component Family

You may already know, that as a component family, the 'wall' category isn't actually available, so usually in these circumstances, I will go with a generic model family and create a subcategory or if I really need to, settle for an in-place family.

I came across THIS nice little post from 'What Revit Wants' recently as another alternative and so far it appears to works nicely.
In summary, Luke walks you through a method of saving an in-place family (which allows us to select 'walls' as a category) and save it as an RFA file.

I haven't really found a strong use case for this yet, but we'll file it under 'tips & tricks'.