Question on setting up a bench

I've got a question, but let's see if it makes any sense.....

When setting up a radio workbench..... is there any particular wisdom in separating different pieces of equipment? What I mean is..... in videos I will often see scopes and spectrum analyzers on shelves near or even over each other....but often the RF generators and meters are somewhere else in another stack or shelf.

So.... does it REALLY make any difference? Or is it more ...... lay it out where it makes sense or...

Question on setting up a bench