1. i would Love it if you could hire adventures to bring back "special" stones that if you add the to a weapon they might give it a enchantment and make the weapon cost more
2. give the player a stronger beginning (like 20 bronze?) and make it so that delivery's take a day to come they will just be at your door when you wake up (this might give the other shop some use as well). And maybe make it so the mines give you a "little" bit more ore? and possible make it so you can make your own grips? so it would be entirely possible to not use the delivery system or at least rarely use it?
3. maybe make it so that it takes a week for the mines to reset but you could get a lot more ore though it would take a lot longer to mine it all, possibly making the entire day go by so you have to take a break from your shop on that day?
4.also i want a dog...
just in the corner...
might bark occasionally...
PS (also if you add a calendar to your room?)