Sorry but I think it is a waste of time putting cooling fans everywhere.
What is the point ?


The point is, people already have their AV cabinets in place, so need to cool with what they have there.
The cabinet has to look good as well as being functional.

I've got a totally enclosed black glass front cabinet, looks really nice (as all the components are black) and the wife chose it for looks. (and I can hide most of the snake pit cables inside the cabinet)