After playing early access, two things are apparent to me: 1- this is a great game, and 2- we need a player's broker so that the players can go to a trading house in game, post things for sale and buy things. This needs to be available to everyone, guilded or not, and it is the only way to resolve some of the economic problems in the game.
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Problem: armor and other items are too expensive to buy from NPCs and the quality isn't very good either. Crafters can resolve this problem in a hurry and make the game better for all players if they can post their goods for sale on an open broker. As things are now, I can not make ends meet by going out an killing imps to get leather to make armor since the costs of armor repairs is disportionately high and the NPCs won't pay me a reasonable price for what I have to sell. (For those of you saying, OMG, she gets killed by imps?? I can only say, you are very perceptive. I am a crafter, not a fighter.)

NOT THE ANSWER- Auction houses are not the answer, they just clog up the chat channels with ads, and even in this discussion the dev is telling us not to try to sell items here, lol. That must be a measure of the desperation out there. Also not the answer: guild stores. They reach only guild members, and have no power to balance the economy. A game wide broker system would equalize prices for gear and other things by providing an economic system regulated by competition among the sellers. I played EQ2 for 8 years and the broker system there is excellent, and it works to everyone's advantage. Crafters and adventurers have a place to sell their items and people who need things will find better prices than they can get from NPC vendors or folks screaming prices in the chat channel. EQ2's system also has a 'broker commission' that siphons off 10-20% of the price which sucks some gold out of the game and acts to balance the economy.

I apologize for the length of this discussion but this is a very important matter for crafters to consider.