Guess I'm an odd one out on this. I do think your advice is spot on. Do to advise I got on this board I skipped the super minis and started with a 510. It was ok and partially did the job. Got some bigger mods and made a couple of box mods myself. Still wasn't doing it for me so went on a got the Volcano that I was originally looking at. I have to admit that the 510 cut my smoking in half immediately and almost painlessly. What took me down to almost not smoking was realizing that I need multiple devices, each more tuned to specific situations.
Now I carry a 801, a Volcano, and a nicostick. I don't know how you'd tell a noob that this may be what you need to do in the long run but at least it's easier to peddle a bigger battery or a mod than it is to give away some of the minis. At this point I've given away or sold my Egos, a 5volt box mod that I made, and a boat load of carts.
I think the best advice is what bssage said, pick something and go with it. I'd add research the hell out of getting the best of of that device too. Because if you can make one device really work well, you'll know how these things work well enough that you can probably get at least passable results with any device.