I did the DRL mod on my old tour. My GP has them also, as well as automatic lamp control. It's idiotproof, I never have to touch the headlamp switch!
A little extra safety never hurt anyone plus it got me a little discount on my insurance.
I find DRL's quite helpful for gaining the straggler in the left lane's attention as you approach them from behind at high speeds!
My only gripe with the Contour DRL's was the fact it didn't have a parking brake kill feature.
