Honestly, I couldn't even get serious about trying to quit until I got my Vision Spinner battery and the stuff that came with it. Of course, now that I AM serious I've gone nuts in getting nice stuff to improve the whole rig PLUS getting a duplicate battery (for just in case...lol) and yet ANOTHER Protank 2 because I love my first one and it's pyrex and doesn't leak, and fancy drip tips, and......
AUGHHHHHHHHHHHH!!
*ahem*
*cough*
Still, for around 40 bucks or so (about the cost of a carton of cigarettes) - maybe less - you can invest in something that will motivate you even further and thus save you money later on. I don't know that cig-alikes work for all that many people. They sure didn't for me.
My initial eGo system, though....now THAT got me excited!
Think of how much you spend on actual cigarettes and in what period of time. That should tell you whether the investment is worth it or not.
I WOULD, however, recommend getting the longest lasting battery you can afford, though. I bought a 1300 mAh right out of the gate and it lasts me a whole day. 13 hours of battery life is an awesome thing.