You can still buy them online (usually from third-party resellers), but prices are seriously inflated.
It’s a shame that two of the best retro gaming consoles in recent years, the NES Classic Mini and the SNES Classic Mini, have been discontinued. Both feature great designs with a miniaturized look that’s true to the originals, silky performance, and strong game lineups of Nintendo’s greatest hits. You can still buy them online (usually from third-party resellers), but prices are seriously inflated. The SNES Classic Mini, for example, was $80 at launch, but a reseller has it for more than $300 on Amazon right now. You might have better luck buying one used.