I know what you mean, she could have had more covers given what a massive movie star she was (I agree with you that she had a following, she was seriosuly huge in her heydey!), but honestly 7 Vogue covers is a lot. Look at some of other actresses that actually never got cover, or otherwise attenion from Vogue! Hillary Swank, Jessica Lange even Liv Tyler.etc Sharon is also very difficult to shoot, because she will NOT give up photo approval, not sure these days, but in her prime? Forget it, i think Wintour gave her only 1 cover because of that, and some rumored falling out they had.