Yep. It's too confusing to have a marginal improvement. Ordinarily you get year numbers or iterations. If it's a new product, have a new name. If it's the same product (iPad running iPad apps), either use a unique, derivative name (iPad Air) or simple number.
DS and DSi made sense, as did 2DS and 3DSXL. New 3DS isn't a really a working name. There's a sweet in the UK called the New Refresher because it was labelled 'new' when it was released some 30 years ago and then they couldn't remove the 'new' label because there was already another sweet with the name Refresher. It's a sweet who's name is derided.
And another observation. If you want to sell it on eBay and list it as New 3DS when it's used, you'll presumably be in violation of their listing policy.
DS and DSi made sense, as did 2DS and 3DSXL. New 3DS isn't a really a working name. There's a sweet in the UK called the New Refresher because it was labelled 'new' when it was released some 30 years ago and then they couldn't remove the 'new' label because there was already another sweet with the name Refresher. It's a sweet who's name is derided.
And another observation. If you want to sell it on eBay and list it as New 3DS when it's used, you'll presumably be in violation of their listing policy.