Internal power supplies tend to cost more and you have to deal with the heat in your box (venting,fans,heat sinks) vs externally in a brick. As you say, Sony did it. They just decided to spend more BOM cost there.
Internal power supplies tend to cost more and you have to deal with the heat in your box (venting,fans,heat sinks) vs externally in a brick. As you say, Sony did it. They just decided to spend more BOM cost there.