When new expansions come out it like taking candy from babies. I know on my realm i control most of the Elementium ore on the AH an I only post about 50 sells at a time whether they be a stack of 20,10s, or 5s. I can easily make 5-10k per day for 7 days straight making 70k. The hard thing is when people undercut me by too much. For some odd reason people will undercut me by 1g when the price is already at 5g per ore. Kinda ridiculous but since saronite ore doesnt sell for 25g per stack this is the only way to do it for me that works well. I'm about to start farming leather here on my hunter to see how well it sells cause if i can sell more than my ore ill switch over to that.