Heck! Let's renew this discussion! With the new expansion, we're looking at new tradeskill items coming up. I'm on the Najena server, but what I've noticed is that high tier items just don't seem to sell that quickly. ESPECIALLY since SOE decided to introduce the new mythical items. What I could see as being beneficial to all of us, would be the introduction of mythical tradeskill quests that we could do, to give us the capability of creating and selling limited mythical items (perhaps one at a time).
But as far as the "Most Profitable Tradeskill"? I would not hazard to guess that any one tradeskill on Najena server stands out above the rest. I have a level 80 Woodworker, who has Tinkering maxxed out, as well as a level 80 jeweler, a level 80 Tailor with Transmuting maxxed out (who supplies all of my other classes with shards/powders/etc), and a level 80 Provisioner. My better half has a level 80 Sage, level 80 Carpenter, level 80 Alchemist, and level 80 Provisioner as well. She was complaining about not selling very much furniture until the introduction of the guild halls. She says that she noticed competition has ramped up in regard to furniture prices, although some furniture is still ranging from roughly 75 gold to a plat+.
My woodworker sells totems constantly, but the prices are still low. He has the specs to find the blue collectibles, and we both harvest the epic tradeskill collectibles...selling them for usually about 2 or 3 platinum per set over a period of a week or so. Sales on collectibles seem to vary depending on the market, but what ALWAYS sell on Najena server are the rare harvested items, 60+ rares sometimes reaching prices of 4 to 7 plat or more (depending on how many are available on the broker).
What really ticks me off though, are the buttheads who grossly underbid us, in an attempt to "balance broker prices" to what they think (in their small minds) are fair market prices. The range of players holding gross amounts of platinum have more than doubled, due to the life of the game. So personally, I feel that any over-inflated prices that we generate are in relation to the amount of disposable platinum held by many high-level players, and should be worked with competitively. There is a difference between competitive pricing, and ridiculous attempts to control the market.