ballast resistor question

I ALWAYS carry spares. I learned that lesson one late night in the parking lot at work many, many years ago. A buddy of mine, who has been in the tow business since the late '60's, always had a glovebox full of them. Go out on a no-start for a Mopar, $20 got you going again, and he only paid a $1 each for the ballasts. Gee, nobody ever complained.