I have activated Day-time running lights on my car, so mine are always on and I had both bulbs go within a matter of weeks of each other.
Replaced them with standard bulbs, and like you say in the Rain these really are lacking.
I read about the Night breakers not lasting very long. Which kinda puts me off.
For £15 I may just have to get a set of the lights.
In this lovely weather we have been having, have you noticed a big difference?
Driving home in the rain the other night I had to double check my lights where even on for all the difference they where making!