Many people don't have any cravings for cigarettes after taking their first vape.
In fact, I'd say more people do not have any cravings than the number of people that do have them.
Um I'm still really new to this and to here but I really don't know about that. If it seems that way my hunch is because the people that do have that amazing, quit-after-first vape experience are much vocal compared to those that don't. The rest of us, and I'd veture to say that's the majority keep more quiet about it because we are still trying to get there and are wondering what we are doing wrong or what's different about us. Also still trying to find the "right" setup and combos for our needs that I guess some get pretty lucky about off the bat. All the internet research in the world can't compare to actually seeing and trying something for yourself.
I first heard of vaping in early 2009, didn't get off my ... and try it until mid-2010 and now finally mid-April 2011 it is really grabbing me and better satisfying my bad nicotine urges and I'm finally smoking less without forcing myself to. At best, I really just feel statements like yours are unnecessarily discouraging to people like the OP. I know I found them that way in the beginning.
To the OP just stick with it and keep reading too like others have said. Yes, starting "blind" with a cartomizer kit was bad luck. Regular carts with a standard atty are really the way to go (and soon you'd probably find you just wanna drip until maybe branching out into mods, diff voltages etc).