I was wondering if a feature could be implemented that it would not require entering a shop. It doesn't seem like this would be very much work to implement since you can already do this search in the item database search, but it would be very useful to me at least to be able to get that info in list form since I import it into excel.
Another feature I thought that might be useful would be to list items whose prices have risen/fallen by over a certain amount in the past month. That way if some item's price is spiking, we can pick it up and join in / hold off on selling for better prices.