Hi
Can't speak for all the shards but I run a shop/business on Europa shard. On my website are the prices for which things actually sell in Luna at the current time. I try to keep it as current as possible. I'll keep updating and adding sections when I can. Any questions you can find my ICQ and email on the front page for the site. I aim to do something similar for Atlantic in the next couple of months (time permitting). Thanks
Melissa