Yes, we all love the pretty bluish headlights that used to adorn only BMWs. They do look nice and they are brighter. But they are not very practical, from most aspects. They shine brighter, right into driver's eyes at night, especially if they are misadjusted. They can look like high beams sometimes, especially when attached to trucks. This problem is worse in the rain. For years, people have suggested shielding old fashion street lights to direct their light downward so they don't shine into driver's eyes at night; Why make the problem worse with brighter car headlights? The average person can see standard car headlights from miles away. The only purpose served by using brighter headlights is if you are in the countryside at night and for that we have highbeams. They cost more, they add little advantage, but they look good so of course, they sell.
-Rich