https://www.gamespot.com/articles/nintendos-nes-classic-will-be-back-in-stock-soon-h/1100-6458913/

If you were not able to grab an NES Classic during the retro console's initial run, the good news is that it'll be back in stock next month. Nintendo has announced that the hard-to-find mini-console will be available again starting on June 29.

The NES Classic ($60), and the more recently released SNES Classic ($80), should remain available to buy through the end of the year, Nintendo added.