Yeah its mostly its enough for around 15 games. Also if you use it wisely, you can store more. For example some games give you 10 slots to save the game. You can use them to store the save files when you reach a checkpoint in the game. Multiple saves allow you to go back a couple of saves and correct yourself if you screw up. Each slot creates a separate file on the memory stick. However, after finishing the game, you can delete the last 9 files and only keep the latest one, cause thats the one that you're gonna need now. Some game like NFS series, God of War, GT4, etc. create only one file while some like Resident Evil 4 can create upto 21. Files are small, usually 200-300 kb large. But they can be large too (GT4 file is 1.5 mb). The size that the game files would accomodate on the memory stick is given behind the cover of every game. That should give you an idea. But as i said if you save smartly and delete old or unnecessary game files you can store upto 15 or more game saves.
