If truth be told, I really don't think I saved all that much: even at $7/pack and 1.5 pack/day habit. This year I don't think I will be buying much in the way of new hardware. I have a ProVari and will be trying to sell my Buzz (gold) and Copper. Nothing wrong with any of them, but I like the ergonomics of  my other stuff better: Indulgence with extension, Icon, and ePower. The latter are for being out and about.
I burned 
through a bunch of money in the beginning on useless stuff like 510's and especially on failed, repeat failed, eGo's and Rivas (totall of 11), multichargers for 510's, ego mega carts and attys, etc. Will NEVER, EVER 
buy aother PV without a replaceable battery.
Anyway, I bought bought myself a nice keyboard and another acoustic guitar, a Breedlove. The Breedlove will take me two years of cigarette savings. Good thing it was not another classical guitar and I have two nice ones, that would have taken a lot longer.