Worth it to put headers on a 318?

I've always installed headers on all my project cars and sometimes regretted it (mostly b/c of ground clearance issues on a lowered car)....it's just one of those things where you could never quite imagine NOT putting them on. That's me. *****, yell, cuss, curse 'em when installing......but then have that stupid silly grin when you first fire it off with 'em wide open.

I'll always have headers.