1. If items are on sale, this is displayed on the item in your own inventory but not in your store. Only the discounted price is shown. Whereas in your inventory for the total, the non discounted price is shown. Confusing.
2. Mass update on inventory, especially sale related functions: apply sale on selected items, adjust prices to average 6 months etc, apply sale on old items, ...
3. Update the statistics on the lower left automatically. I see new stores coming up and adding items, but the stats stay the same.
4. Urls with /mystore/inventory/category/item number have a missing navigation part at the top of the page: home > category instead of home > my store > store inventory > category
5. Allow search on stores (store names, owner names, etc). Allow column sorting on the stores page.
6. Display store link on owner page for easier access.
7. Add or implement development/bug tracker with public access. This both allows Brick Owl users to add issues (bugs, features, etc), keep track of development and gives insight in how fast things get fixed/implemented. Openness and information are key elements now to compete with Bricklink!