Now you can sell any item not belonging to the store ‘type’, for some sad pocket money. But I would like it that I can for instance start the budget stores, where I sell as MAIN items budget gifts/flowers/clothes. So instead of having to choose 1 as main selling point, I would like to choose all items whose demand-values are checked.
This would allow many fun combinations, like a budget or expensive store, or even combinations like Jewels & Gifts. There might also be some modifiers that reduce combination effectiveness (Cigars + food == yuck).