Finally decided on a cam for teen SB. Should I bother with header?

couple of facts/reminders:

Cam is already purchased and I like it.
Springs were already replaced 2K miles ago.
Headers have been decided against, at least for now. Lots of dyno charts that compare with and without that show minimal gains below 3K, and that's what I am all about. The other problem again is cost for good headers that don't leak, don't drag and don't force you to get a new small starter in an e-body. Having them piped into my dual exhaust is additional cost as well to the tune of nearly $900 including headers. Roller cam would make more sense at that point. Exhaust stays as is for now.