Rawyzf,
I see your points, but my kids are bigger now.
Back in the days when I bought my BMW-5, I loved this sunshade option for $500.
(such a deal for three shades, two manual on the sides, one auto at the back)
My salesman actually cautioned me that some of his customers came back asking for
removal of the shades due to the noise. I went with the option however, and was very happy with them.
I am not against sunshades. Just to point out the downside of having them.