DVC Grocery Delivery to Room

[mkatsy]

But if the charge only applies for delivery to the room, what is it for? Is it just an extra $6 in the mouse's pocket? If it doesn't go to the bellhop, what does it go toward?

It’s in their union contract that they (bell hops) get $6 for non luggage deliveries to the room. So Disney is passing along the cost directly without a mark up.