Interesting Questions

[Grey Acumen]

First off, are we talking official consoles, or do we include those old tigr and game& watch handhelds that only played one game each? What about knockoffs from china and cellphone emulators?

Also, are you talking about every single copy of every single game and console, or just one of each?

And also, what denomination are you asking? USD, Euro, Yen? Should we calculate exchange rates? what about collector's values or should we only go by original price, what about when consoles drop the price after a couple years? Do we use the old price or the most recent price?

I know your questions are meant to be one of those; "How many atoms are in a cell?" type deal, but it's still very open ended as you've left things.