hehe, that's awesome

The same thing happened with me (cutting back) but I never kept track of what I saved...it was probably a lot, since I didn't use tubes, I just rolled them without a filter (crazy I know lol.)
I really think it did help me to quit though. I just gradually cut back more and more without knowing it, and before I realized it, I was down to 1 or 2 a day, then 1 or 2 every couple days. Then one day I noticed I only had one maybe once a week, so I figured what the hell, maybe I'll just quit. So I did :P