For you. There's a feigned sense of actual real danger to your playing experience if you haven't saved and you die. That's challenging. You're a lot more timid and nervous about things (which immerses you more into the experience) if you know you could die at any moment (as much as in real life) if you do something silly or make a mistake. If you die without a save it's like you actually died and you have to start over. It's very similar to any arcade game. If you're smart enough to save, however, you get to continue.
The way I see it, if there's going to be a retry or autosave function then why have deaths at all? That sense of danger is completely gone and it turns into a simple puzzle game.
So, make it a choice.
Originally Posted by TomPravetz
This is the internet and you made a typo. Therefore, I won this argument. My opinion is now fact.