We Need More Writers!
OK I lied, there was 11 gold in my mail box after a week of not playing Guild Wars 2.
I had sold off around 75% of my inventory of armor items. Here's what I learned:
I can get away with listing 250 of a single armor item if I let it sit for a week and don't cancel. Previously I was listing 250 at a time and 9 times out of 10 they wouldn't all sell, so I'd cancel and relist the next day or two. While this was still profitable, it was no where near as profitable as letting the vast majority of my items sell.
Now, instead of baby sitting the armor auctions, I can let them sit on the trading post while working on other markets during the week.
In some rare cases, around 100-200 of each item sold, but because my profit margins were so big, it didn't hurt me to cancel those last 50-150 unsold items.
This is how you need to analyze the trading post, with patience and persistence. How many items can you post? When should you cancel? How much should you undercut? How do you calculate a good time to buy?
With regards to how many items you post, I can't find the link (sorry), but here's the gist of the article:
Post 2 of an item, if they sell in a certain period of time (how ever frequently you are going to check the trading post) then go ahead and list 4 next time. Then 8, then 16, until you start noticing that you can't sell them all. For some people, this time period might be an hour or it might be a week, but the method is the same regardless. Once you find the magic average number of how many items you can sell between trading post sessions, you will no longer have to worry about wasting time canceling and relisting auctions.