Can JCing turn a net profit?

[TheFishyOne]

I'm an ENC, so I can enchant my own bars, but it seems you have to drop a ton of plat into the skill before you can make stuff that other players will buy. I'm a Gnome, and have resigned myself to the fact that my beloved Tinkering isn't really worth leveling in terms of turning a profit, but JCing seems to have potential.

My current skill in JCing is 0, so to all you experienced JCers, will I one day earn a return on my investment if I stick with it long enough?