True, in the winter I could see the need, but here during the summer it's pretty clear so I'm not too worried about it. I actually installed them when the Fake HID phase was going on, I was hoping they would be bluer and look nice during the day. But at around half the watts of regular high beams they were still white.
Another reason I took them out is becuase I have a remote starter on my car and I thought they looked really stupid with the parking lights when I started my car from inside the house.
So I guess I installed them mostly for looks and didn't like the outcome. Thats probably one of the only things I've ever done to my car and wanted to change.