I saw some brand new tamagotchis in the toy alley of a supermarket while looking for a gift as recently as a few weeks ago.

People may be not crazy about it as they used to but they are definitely still a thing.

And the concept is still alive and well. My kids each got a Bitzee for Christmas which is basically the same thing.

Hobbycraft in the local retail park has them by the tills. Definitely still around.