For those wanting to push the copycats,
1) The OP asked about the eGo-C. Are there any copy cats of that? I'm not finding them in the companies listed.
2) Even if there are already eGo-C knock offs the OP didn't ask for a lower price eGo-C option just the best price on one, so why should anyone send them to anyone but Joye? .........
..........
I'm looking at the eGo-C because I'm seeing no other real design improvements to the atomizer from my 3 year old 4072. The eGo-C allows me to take the atomizer completely apart and clean/rebuild. And when it does junk out it's only $5 to replace. When someone comes out with a fake eGo-C I'd consider it but I'd have to know what a real eGo-C is before I could compare.
I think it's important to keep in mind that attachments don't have to dictate the choice of the power unit. I'm vaping a Joyetech eGo-T right now, with a Joyetech 1000mah power unit, which I have two of. I also have a Joyetech 1000-mah passthrough. I like the Joyetech tank system, but it's only one of the many atomizer/juice holder setups that I use and will be using in the future. The point is that the Joyetech eGo-T or -C tanks and atomizers can be used on virtually any power unit, and of course, most easily on those that have 510 threads.
Is the Joyetech power unit well-made and reliable, with plenty of capacity? Yes. Is it the best choice in a constant-voltage power unit? Absolutely not. Will I ever buy one again? I highly doubt it.
Bear in mind, it's extremely well-made, and I've had zero maintenance issues with it. But it's only 3.4 volts, and costs $20-25 to replace, as opposed to $6 or so for a 3.7 V 2800mah lithium battery in a far better choice for a power unit like the Smoktech 18650 that takes replaceable, generic batteries. That also allows you to play around with different battery types like high-drain and LiMN and LiFePo4.
IMO the OP should get one of those for about $49-55, along with a Joyetech eGo-C base/cone assembly and 5 Joyetech heads (atomizers) for about $25. That will give the exact same functionality of a genuine Joyetech eGo-C kit, but with slightly higher voltage and far lower maintenance costs.
http://www.myfreedomsmokes.com/e-ci...ech-ego-epower-mod-2800mah-starter-kit-black/