I heard that in 1980. And every year since then. Meanwhile, most of the other companies are long gone or a tiny fraction of the base they used to have. Apple will probably be around long after you're dead.
And you can still get batteries for every iPod model. I recently replaced the battery in my 2005 iPod, and it works just fine. Go buy some other maker's product, most likely a Chinese ripoff and worry when the commie government makes it go belly up.
I will. Thanks.