well i am not sure how it is in your worlds but in pandemonium i can buy a stack of fire crystals for 5k and copper ore for 9-12g each now lets just say i can buy ore for 10g 5,000+(10x4x12) break that down to 5,000+(40x12) and from there 5000+480= 5,480 spent on materials and a stack of copper ingots sell for 11k here... now if you can do the math (or understand it as i explained it) then you can see that obviously you can make money off buying and, or using fire crystals... well thats my 2cents...
Alchemy = 29
Goldsmithing = 16.6
Leathercraft = 1 ;p
<--- name is really Saithe
hopes this helps some people make a lil gil...
goodluck.......