It's not like gamers never re-bought the same console because of a redesign.
Offering a better model is not suicide, it allows Nintendo to attract more consumers who feel that that variant is more to their liking.
More variety means more consumers.
For exameple, when Nintendo introduced the 3DS XL they resonated with gamers who wanted a bigger screen for handheld gaming and didn't buy a regular 3DS because of that.








