I think if you're likin' on the pass-through, then just start looking at battery mods. They'll deliver that kind of experience, but will free you from the wires and have long battery life. For store-front solutions, there's the Trog Screwdriver, the Puresmoker Prodigy, and maybe the Zi-moshi Lightvapor (he was leaving country for while, so not sure).
You can also check on the Modders Forum, some of the folks there will do builds for people.
If you or anyone you know can solder, there are some explicit instructions for how to build a Magnum(flashlight mod), a NicoStick(box battery mod), and maybe a couple other designs.
If I were just going to buy one from the store, I'd probably go after an 801 Prodigy from Truesmoker, they're still in 'preorder' only, but it looks to be a good mod, if a tiny bit too powerful at a full 5 volts.
Anyways, that's the 'sort' of approach I've decided on, based on having lost 3 batteries due to bad switches, one atomizer due to a bad battery, and one USB pass-through due to a bad switch (all in about 6 weeks).
I now prefer to just load up on atomizers and use 'anything' but standard power supplies, cuz that's where you lose your investment. I suppose the Janty Stick could be an option as well, since it gets you away from the expensive batteries.
Hope that gives you some ideas, best of luck!