It's a great way to get a premium feel out of cheap materials. I wish more modern (cheaper) electronics would learn from what Nintendo has been able to do.
This sort of design for joy rather than for prestige, reassurance, solidity, sensation of quality engineering, etc is what you hope for from Nintendo. They do have a pretty decent track record at it, and their most successful designs in that respect are also some of their biggest hits.
Teenage Engineering does joy better than anyone else I can think of, but it's impressive when the huge companies do any of it. Remember when dumb mobile phones became commodity enough that industrial designers really got creative? Thinking KDDI in Japan, especially the Infobar. Some manufacturers still do that but don't have the software chops to complete the thought.
The Switch is neat and tidy rather than premium exactly, but I do remember the first time I picked up a DS Lite. I was really impressed. The DS Lite (unlike the original DS, DSi, or 3DS) had a double-skinned cover with a thin transparent plastic shell over the coloured one, which gave it a lovely sheeny appearance, and everything just fit together beautifully. The audio design was a delight as well. I loved that this quality was lavished on something "for kids", and that it was so unlike the sort of sterile metallic slabs that companies like Apple would spend the next decade and more designing.