All of us knows that the DS had a bad start. We all saw that when it went from being a portable N64 to a portable SNES, it became something exceptional; it became the King of consoles. Nintendo’s wish to tap the untapped marked, ie. the Blue Ocean market and reset the userbase served them well; both DS and Wii became a steamrolling monster. No console was spared. There was something for everybody, new and old alike.
It really boggles my mind that Nintendo decided to ignore what Wii and DS were and proceed with the Wii U and 3DS.