I completely agree with Coelho. I may keep getting higher with each hit I take, but it's not enough of a significant amount to make me keep smoking, because then I feel like I'm wasting it.
Like, instead of smoking that extra 1/8 to see if I can get myself even closer to the point of passing out, I'd rather wait till my high dies some. Then that 1/8 will get me farther.

I dunno, I like to think of it as a scale out of 100, I can be at an 85, and smoking that extra 1/8 will only bring me to an 87.
But if I let myself wait until I'm at a 50, and smoke that 1/8, I can get back up to an 85.

Does that make any sense?