I made my account with my brother a few years back, and now he's been at college for a year. He doesn't have time to add money to my wallet and that stuff, but i still want to use PSN. I've bought 6 games, most of them cheap ps1 classics or minis. I called and asked if they could make my account into a master account. They said they can't. In return, they said that they can create a new account for me. I asked if they could transfer my games over, because i'd rather not have wasted $60. And what do they say? "That is too much information to transfer." HOW IS THAT TOO MUCH?
I don't care about trophies, because i like replaying games over and over again. I just want to be able to have my games as a master account!
Nothing is ever transferred between PSN accounts, but on the PS3 it doesn't need to be. There is nothing stopping you from having your PSN sub-account, and your new PSN master account, on the same PS3. Games downloaded by your sub-account can be played by your master account, and vice-versa. You just have two PS3 user profiles, one for each PSN account, just as if they were being used by different people.