You lower your price so that its competitive. If you don't lower your price you face the risks of it not selling at all and when you do finally decide to lower it later, you have a possibility of a larger loss then when you could have lowered it earlier.

If everyone put up their mats at 200k, who would you buy from. The answer is, it wouldn't matter who you bought it from, they are all the same price. However to the seller, thats a problem. Because everyone is selling it at 200k, the consumer can choose anyone to buy from and it will be all the same. It will all be based on RNG, if even, for the seller. There is a good chance you may never sell your mats for 200k.