Why people are so crazy with GTN prices ?

Its simple economics..higher demand higher price. Thats not to say there isn't complete price sharks that auction prices over sale prices wouldnt' fix. I'm a cybertech and I rarely ever had to buy mats off the AH usually getting them from quest areas or the occasional mission was more than enough.

Because most people are too lazy to craft apparently, and I take full advantage of that on particular items. I justify it because usually I give away any blues/purples that drop while leveling that my character cant use.

Besides, if you werent willing to pay that much then you wouldnt be buying it.

The reason you see ridiculous prices on the GTN is because any good deals are likely to have been snapped up already. My advice is to buy in bulk BEFORE you need the materials, and to find a good supplier.
Also, price your wares a bit higher. I sell a techblade that costs me 13k of mats for 50k, and it's a very good deal for the people who buy it.

I have 8 toons and constantly send their companions out for mats. I also buy off the GTN and resell higher or use for crafting and at least one mat stack that I sell gets me hundreds of thousands each day. In fact when I just logged in and cleaned out my 3 GTN seller toons I was up over 3 million just since I logged off last night. Credits in this game are so easy to make its not funny. Players are willing to spend them because they know its easy to remake them.

Then say good buy to good me . A new GTN shark is born. I am not lazy to grind for materials and crafting. Now I will take advantage of all you who needs a mighty armor or an new earpiece or a droid core.

Maniacal laugh.

Your journey to the dark side is complete, my young apprentice.

I love the insanely high prices

It means I can put stuff on the market for a reasonable ( and profitable ) price far below the insane prices and my stuff sells very quickly

You need to remember that the prices you see on the GTN are what things have NOT sold for yet, if they were already sold at that price, you wouldn’t see them.

Once, on the GTN, I saw 10 of a mat for 9k. Next to it I saw 4 of the same mat for 500. Guess which one I bought?

GTNs follow the normal supply/demand free market model. Supply/demand is different on different servers, and will change over time as well. Yeah, sometimes someone decides to corner a market on something to scalp, but not often and not broadly in the market. There is room for everyone to benefit in the market, buyers and sellers.

If you oversell in a free market model, your products dont' sell. You will end up relisting and dropping your prices until they hit a sell threshold.

If you undersell in a free market model, you are short changing yourself. Someone else benefits from your generosity. In reality, a good selling model is to establish what the market price is and undercut it by 5-10%.

I'm a card carrying member of a Socialist organization, and even I understand the law of supply and demand!