What sells on the Diablo 3 Auction House?

Diablo has been out for 2 and a half day and I felt it was time to share my speculations based on current experience of what sells on the Diablo 3 Auction House.
This post is mainly dedicated to things that sells on the gold Auction House, since the Real Money Auction House has yet to go live.

My observations so far is as follows. Crafting materials will sell, but the price fluctuates wildly as people go through the content I foresee the normal mode crafting materials becoming really cheap or not selling at all. At this point in time you can still sell them, however here is a small tip. The subtle essence sells for between 20 and 25 gold per item at present and the Fallen Horns are about 40g (This is likely to fall drastically). Most blue items of act 3-4 sells for 100+ gold and you usually only get 1 essence or horn from an item. This means that unless the item value to sell to a merchant is less than 30 I would not recommend salvaging from a pure money perspective. The same goes for Shimmering essence and Lizard Eye with prices on the auction house 30g and 150g. Most items simply sell better to the merchants.

What can you earn money on then you ask? Well so far I have been selling the Jewelcrafting and Blacksmithing pages. The first goes for between 300 and 500 gold at the moment and the blacksmithing ones goes for 1400-1500 gold. These prices are likely to drop significantly, so now is the time to sell off pages. You can always pick some up cheap later on. Gems is another thing that sells, albeit it is dependant on the quality. Unless you sell really cheap I don't think you can get rid of chipped ones and regardless, it is more profitable to upgrade them and sell them on. I have yet to delve too much into the gem marked, but a flawless ruby sells for between 2000 and 3000 gold at present. I am holding on to mine though, hoping to upgrade them and auction them for a higher profit.

Last item I have been selling is dyes. I found a random NPC vendor that sold them and picked up a few. Sadly I didn't stock up on them as they sold like hot buns. At this point however, everyone has picked up on the dyes and they no longer sell for a real profit, if at all.

I just entered Act 2 on Nightmare and I am sitting on about 320k gold.
Not as much as I would like, but I will keep pushing the gold limit as I foresee the Real Money Auction House mainly be good for gold transactions.