One of the biggest limitations on consoles is the amount of memory available to the game.

You can hire a bodyguard, to protect you at the bank for example.

The best thing about streaming is there are no load times during play. Once the game has loaded the player never has to wait for new maps to load. This enables the player to get more immersed in the game world as there are no loading screens to remind the player they are actually playing a video game.