Having a look at the list again. Very interesting to see which systems are on there.
I wonder however regarding the balance of inclusivity vs usability. I suppose this depends on the purpose of a collection such as this. For example, I don't know about having Texas Instruments calculators on there - let alone 7 of them! Of course it's great to increase the number of emulated systems and to pad this out a bit - but at what point does it become addition of systems just to increase the numbers? Where does it stop? Do we include the software associated with, for example, home appliances, PDAs or mobile phones (because MAME can emulate all of these)?