I try not to have to drive my Healeys in the dark, but sometimes you get caught, and I just want to see and be seen as well as possible. Someone on the email list made a snarky comment along the lines of "Gee, how did we all ever manage to drive our 6-volt cars with wimpy generators and crappy headlights and survive?" My reply was "When everybody had slow cars and weak lights it was a level playing field. Now, we're up against impatient soccer moms in gigantic SUVs in a hurry to get home from soccer practice while she's calling hubby on the phone telling him to put the casserole in the oven." Brighter lights won't necessarily save us, but they can't hurt, and having a couple hundred feet more vis on a dark and lonely highway would be reassuring.
Besides, I just like to experiment, and this is an easy one.