Let's say you sit on your bed one afternoon and, out of boredom, fling playing cards at a hat for two hours straight, just to pass the time. You amuse yourself trying to hit 10 in a row.

Now imagine it's later in the evening and you're about to have sex with your girl. Suddenly she sits up, her boobies hanging out, and says, "Wait! We can't do it until you fling 10 cards into that hat over there! It's a rule in the obscure religion I practice!"

Will you enjoy the card flinging this time? No, and in fact the repetition you found enjoyable before will become maddening, as you flip cards around your frustrated, wilting manhood.

Well some video games are like tossing cards: sports games, fighting games, racing games. The fun is in repeating and practicing them. But other mission-based games are like having sex. There's a specific progression and goal in mind, and repetitive interruption only ruins the mood.

Such as ...

Having to replay levels due to limited save points.

This is a throwback to the arcade/NES days when physical limitations in the system wouldn't allow you to save your progress just anywhere. There is no reason for this now. None. We're busy. We've got work, appointments, phone calls. We shouldn't tolerate an inability to save our progress in any piece of software.

There are people who say that preventing saves adds to the "tension" of the game. Sure, in the sense that the fact that your 360 could catch on fire at any moment also adds to the tension. Face it, if the only way you can think of to add suspense to your game is to disable a feature of the hardware, then you suck at making games.