Let me see how I can explain it without putting up a wall of text. Bare with me...
Their are two ways to flip items on the TP, lets call them "High Volume" or "High Reward". I chose High Volume but will explain both.
The "High Reward" method consists of combing through the TP for large amounts of time to find items listed under what they normally sell for. This requires a lot of research and you frankly have to get lucky to find these items. The items are usually sold by someone who doesn't know any better, someone in a real pinch for fast gold, or makes a mistake when listing by not using the automatic price the TP gives you when selling. This can be frustrating and take hours to find items to flip, but can yield big money for very few sales.
For "High Volume" I will use an example. First I go to the TP on the hunt for items that have a large amount listed and sell for cheap. Crafting items are usually the best. I then look at what things are listed for along with the purchase price the buyers have set. If you do not know what the listing fee is buy only 1 and resell to get that price. So now I've found an item with it's lowest listing at 1s and the highest buyer price is 80c. If the listing fee is 10c you have a 10c profit there. I place an order for 250 of these items at 81c since I want them fast and resell below the lowest seller set price.
It's all about moving the items fast (more quantity = high volume of sales). Tthe trick is to not get bogged down in maximizing your profit with this method. Prices jump a lot on the weekend and even though that item was selling for 1s it is now listed at 95c....SELL IT. You do not want to hold out for a better price since sometimes that can take hours and the name of the game is make small profits as fast as possible.
Don't just pick one item. I usually pick 6-8 different items to keep the money coming in steady when some are selling slower than the others. I might only be making 10c an item, but moving thousands in an hour adds up.
But, could you explain that "making more" thing please.
This is where both methods benefit from this. I can make 1g/hour using 10g of my stash selling high volumes of items. If I use 30g I can make 3g just by purchasing 750 ore vs the 250 i was restricted too by my own nest egg. For the first method you can buy 30g items and flip them for 40g in a matter of a couple days (see Exotic Weapons for the Legendary Crafting for a good example).
Both take a little time to figure out, but it's very simple once you've found what suits you best. Someone playing 10 hours a day has nothing stopping him from doubling his gold with the exception of the total supply on the TP at the time he is flipping. Luckily their is so much Supply I don't believe anyone can ever control one particular market and hold the server hostage.
This post was edited on 9/20 at 12:09 pm