I think "where you put your gear" and "your ergonomic operating position" are two separate questions.
I have migrated to where most of my gear is adapted to 19 inch rackmount solutions.
You may want the rig(s) themselves to hand, but a lot of other gear can be profitably placed in rack mount, which ultimately takes up less space, yet can be well ventilated. You might have to reinforce a shelf or get a rackmount with all four supports in it (I did) to support heavier amplifiers, but it is quite possible to get those if you are patient.
New 19 inch rack stuff is expensive, but good surplus stuff turns up all the time.