leslie_ms
For your use, I'd agree with you completely. You probably won't even need all of the room you got on your Touch. I don't know if you like archiving your books on your computer, if you do, then years later you have a chance to go to your archive and find your old book. And may be Kobo would survive too.
But idea of a large on device collection of books works for extended trips, long hiking vacations, where you know your eink device would have enough charge, but would not have internet access.