I personally love the Nes mini. I managed to pre-order and receive 3 on launch day at regular retail price. I initially bought them as stocking fillers for friends/family for Christmas and one to keep for myself. When I noticed how they instantly became impossible to buy again, I kept them and got them other gifts!
I now use one for fun, I'm a gadget maniac, so for me it's just a fun gadget to have and a real talking point when people come over.
I have pi3's inside sega megadrive (USB hub) cases in separate rooms and one right next to the nes mini and the look on people's faces when they see them, they just want to play them.
For me it's a shame to discontinue it, seeing as there's still a huge demand for it.
If they come up with the snes classic and even an n64 classic, I will still get them, I just love gadgets. [emoji3]