the developer should try to add more props that weren't originally available like vehicles or toys (ball, wood block, toy car, etc.) along with a way to personalize your base character (the hunter/character before you change to a prop)
i think that everything should be able to be bought with some fame and not only gold because only gold limits players who aren't willing to spend some money to get something they want and using fame will make it easier to obtain things and it doesn't limit the playability of the game like gold would