Rustle, surely that's got nothing to do with airmanship, it's called manners? You'd be quite entitled to make that straight-in, but good manners require you to imagine yourself in his position; he has a slot to make, you will lose him his slot if you make the straight-in, and all you have to lose is another 5 minutes in the air (longer if you have to make a big circuit, depending on local procedures).
Tim