I just wanted to say that I didn't list all my hardware. Just the duplicates I owned at one point.
Anyway, if you constantly rotate consoles in and out of circulation, like I do, you use all the hardware.
I limit myself to 1-2 handhelds and 1-3 consoles at any given point in time. This started out of necessity (I simply don't have room for much hardware, but I quickly realized it was an excellent way to focus on specific platforms (SMS, Genesis, NES, etc.) every few weeks. I like it.