Hinge/Lid behavior

Hello, stupid paranoid question here regarding how the hinge should behave when there's only say a 5mm gap between it and the laptop, opening or closing.

Is it supposed to pretty much lose all its resistance at this point and instead just fall down closing it, meaning you can't leave such a tiny gap open?

 

Magnet does sound nice but why does the hinge have to stop giving resistance? Shouldn't it have a magnet PLUS a strong hinge that doesn't let gravity have its way?

The way I see it it IS terribly loose for that last part. Turn it upside down and the weight of the lid itself can make it open itself 5mm or so.

I'm sorry if my lingo is a bit off on this subject. Might be hard to understand what I mean. Think I'll go into a store and compare lids ^^