What do yall mean "not worth it"?

GSR cams are almost free, $60 maybe?

Anyway I swapped my JDM B16 cams out (in my B16 at that time) for some GSR cams and gained 3-4 WHP/WTQ. Now it has been awhile but I'm almost positive that there was nothing else different on the before & after dynos (both from Mainstream).