OP, that was my issue too with the patch - I still wanted to smoke because of the physical habit. Yes, I was getting my nicotine fix from the patch but mine is a 20-year habit and it was more than just getting the fix. I always ended up smoking with the patch or peeling it off and saying "I'll start better tomorrow" and never did.
Here are a few things about e-cigs that I learned during my research and subsequent use in case it helps:
-Not all companies/brands use the same ingredients. Yes, most of them have nicotine (which is mostly the point) but they have different components by brand.
-Yes, there is some dispute about whether propylene glycol (a primary component in the brand I chose, GreenSmoke) is "healthy" (it's used to create the "vapor") but here's the thing that swayed me: cigarettes will kill you. There's no "if, ands, or buts" about that. That's why I bought the e-cig. To me it was a much lesser risk.
-They come in two distinct formations: a two or three piece contraption, basically. IMHO the two-piece design (charge the base, and the other piece has everything else) is easier, and easier to me means more likelihood of use.
-Cartridges come in different nicotine levels. You should choose one that relates to how much your dad smokes now. Any of the sites should translate their cartridge levels versus current cigarette use to help you select. If he wants to quit then the gameplan is to purchase cartridges that match his current nicotine level and then have him reduce the strength over time. If not, then he can stick with the current nicotine level indefinitely.
-They come in various flavors. When I did my first GreenSmoke order I mostly bought those that were like "Marlboro" thinking I'd want it as close to my cigarettes as possible. I was honestly surprised to find that I was happier with some of their other flavors (mocha, apple) and was happy to stop using the "tobacco" flavor.
-There is no cigarette smell. There is no heat and fire hazard.
-The quality of how an e-cig "pulls" (feels when you're inhaling) and how it vaporizes/smokes (what comes out of the mouth when exhaling) will have an impact on whether it will be considered a realistic replacement for cigarettes. You can adjust how hard/easy it is to "pull" by tightening or loosening the cartridge screwed into the battery.
I have just one regret in my GreenSmoke experience: the charger died on me. It would have left me in a lurch if I hadn't bought two, and they were quick to replace the first at no charge. I suggest buying two cigs and two chargers to ensure they're always available. The two e-cigs, one charger, and cartridges are the basic components of the GreenSmoke starter pack, but really think about that second charger just in case.
Here's how it works (in two-piece formation): The battery sticks (which look like the length of a cigarette) are charged via wall or USB. They should last days without a recharge with normal use. You screw cartridges into them which contain the nicotine, flavor, and vapor components. Life depends upon company but in general think one cartridge = one pack of cigarettes. You switch the cartridges when they run dry (hard to pull and/or minimal vapor) and charge the sticks as needed.
I fully switched to e-cigs at one point and transitioned back. This is my fault, not theirs. I didn't have the drive to change. It's back on my gameplan now because you started this thread, so I send personal thanks for that.
To be clear - I am in no way affiliated with GreenSmoke. I researched e-cigs extensively for weeks before I pulled the trigger and that's the company I selected based upon a multitude of factors, so I'm sharing my experience with that company. I'm sure others who chose different companies can share equally positive feedback.
There are a bunch of YouTube videos about GreenSmoke (and some they host on their site) if you'd like to see how it works and what it looks like.
Check out this link for more info:
http://en.wikipedia.org/wiki/Electronic_cigarette.
Best of luck, OP. I hope you get him to switch!!!