I have a question. What is the point in having a stock on colors and textures?

stock? you mean the stock market?

Or, how many items they have left to purchase?
Well, if there was unlimited amount, the cost of each item would go way down, because everyone would buy them, and then eventually try to sell them cheaper to everyone else. Eventually they would be practically worthless.
By keeping only a certain amount out, it has just the right amount of those items out. Unfortunately, half the people put theirs in the trade center for a ton of money.

thanx for claering that up.