Teleporters are interesting because when you think about it long enough, you realize the person on departure end died.
You think about it more... and if the person that comes out the arrival end is an exact replica -- down to the atom -- and, further, has internal continuity of experience... You realize that if you accept they died then you kind of also have to accept that the "you" of any given instant is constantly dying and giving way to the "you" of the next instant. That person living that experience at that exact moment will never exist again; they're dead.
So you're kinda back to transporters being business as usual again, but with a fun new existential crisis on the side.