"I don't know if there were LCDs in 1989..."
That's possibly the most retarded thing I've heard in recent memory. What the *Can'tSayThisOnTV* do you think the gameboy uses? It sure as Heck isn't a VFD.
Also, obvious fake is fake. He mentions it was glued in, but I saw NO glue residue whatsoever. It was not connected to the gameboy logic board in any way, which any active electronics would have to be for power at least. And it is sort of wedged in and not actually secured. I'm not sure if the gameboy could even be assembled with that in place.