The DVD, as you know, was introduced in the mid-1990s and it was quite expensive. But you can see that by 1998, it had fallen below 400 dollars, and 400 dollars was a psychological threshold.
Come sapete, il lettore DVD è stato introdotto a metà degli anni '90 e a quei tempi era molto costoso. Ma nel 1998 è sceso sotto i 400 dollari, e 400 dollari era una soglia psicologica.