I'm not sure if there are others, but after speaking with one of the other smithy types online they pointed out that in perhaps the cheapest Smithy shop chainmail templates run about 31 gold. The warehouse takes them and pays 30. While its nice to get some coin back on some things, it would be nice if this was upped a little to actually provide some profit, perhaps 40 gold per?
Considering the amount of supplies going into a suit and that it requires leather patches as well, would fill a gap in the process for characters trying to sustain their craft more.