Another aspect is that the physical items take up actual physical space. You have to store them somewhere, and you have to look at them, and you might easier co

Another aspect is that the physical items take up actual physical space. You have to store them somewhere, and you have to look at them, and you might easier come to the realization that what you are doing is completely ridiculous. And for the sellers of these physical items they also take up space, shelf space, and seeing a large number of extremely similar items for similar games in one retail location, might also clue you in faster on how ridiculous the thing is. The physical items quickly run into physical limitations, which is good. The virtual items on the other hand have zero limitations, zero rules, it's all just pixels and database entries, and the presentation of what you "have" can be managed, hidden, manipulated, so that you still think you have nothing and need to buy more pixels.