450k is standard.
A loom point is worth more than a normal loom. This is true because it increases your options: you can loom anything you want, whenever you want. Why do you think its not just to pay extra for such advantages?
1. Even an item you can't use (a bow, or a weapon with high str requirement) you can have someone else loom it for you and use it on your next build.
2. If you wanted some obscure item that you just can find on the market, you can still get it it loomed. Like a +1 knightly kite shield, or +1 rus shoes. Your options aren't limited to whats on the market or available on the forums.
3. You can get it loomed NOW. You don't have to wait until retirement if you have the gold. This is a huge advantage and warrants a higher price.
I'm sure you could think of other reasons why a loom point would cost more than a loomed item if you put your mind to the task.
