Unnecessary?
Why is that?
I am a consumer, I don't want to play games on a tiny, low res 3DS screen ..... I have an iPad and some of the games are good, due to the limited control methods a lot of the games begin to feel very samey.
Hardcore gamers still exist! ...... hardcore gamers like high end hardware (hardware is decent you say, what other portable games console has better?), proper control scheme (3DS frankenstick says two sticks is important) and full on console games experience on the move (why should I accept diluted games experiences just because I am using a portable).
A lot of recent gaming trends has been the move away from the hardcore gamer scene (I hate that phrase).
This makes sense from a business perspective but just because we have seen the gaming industry expand into other markets does not mean that the hardcore gaming base no longer exists.
Kinect, Wii, Casual ....... they are not for me!
I support innovation of course, but I like two sticks for control as a foundation (give options for others), high end graphics and full on, high level games.