For whatever its worth, I've been a pack a day smoker for the last 13 years. I started vaping 3 days ago, Ive smoked about a half a pack of analogs in that time. The hardest part of this has been avoiding smoking the analog that im used to smoking just upon waking every day for the past ~decade-ish.
Aside from that, the only other downside im seeing atm, is the crap coming out of my lungs (though i suppose that really is more of a positive than a negative) and that will stop once my lungs rebound from the years of abuse.
Vaping is rocking for me, already im noticing slight differences in my taste, smells, Ive washed every article of clothing i own and none of it will ever smell like smoke again! Short of a complete US ban on this product and supplies becoming unavailable, I'll likely be vaping in place of analogs for quite some time...
Someone once told me that a cigarette takes ~7mins off of your lifespan, Seeing as you were smoking 2 packs of camels per day, that's 280mins every 24hrs(math?) that you were subtracting from your lifespan. So even if you got it down to 4-5 a day, or even a single wake and bake analog daily like myself, that's a drastic improvement on the length and potentially the quality of our lives.
Keep up the good work, stay positive and try to remember its about quality and quantity of life thats important not # of analog's that could've/should've avoided.
/end my 2c