The advantages to e-cigs are many.
The disadvantages in my opinion.....
1. The cost. So far with me, vaping is slightly more expensive than analogs for the same time period. FDA involvement I fear will only drive up the costs not too mention if the states start wanting a share of the taxes they are missing.
2. Priority Mail shipping and handling on purchases. When I first started vaping, purchasing a couple of attys here, a bottle of juice there, started to get a little expensive when factoring in the S&H. Be nice to see vendors have a First Class postal rate option on smaller items so a person doesn't have to max the shopping cart to take advantage of the Priority Mail rate.
2. Atomizers. Atomizers are the achilles heel of vaping. The power source, juice and cart fillers can all be replicated easily by the consumer or made by state side vendors. Atomizers on the other hand are a Chinese product with high maintenance and a limited life span. While a fancy Prodigy or Screw Driver would be nice thing to have, a quality made in U.S.A. atomizer that is guaranteed to last a couple of months would be nicer.