On the other hand, I started to believe there's still apparently place for things seemingly similar and non-unique, even "nearly the same", but in some way diff

On the other hand, I started to believe there's still apparently place for things seemingly similar and non-unique, even "nearly the same", but in some way different or better. And they totally can have potential to break through, even in area that looks saturated. That said, it's sure not guaranteed, but absolutely possible.