Sure it would still be niche, but there are direct drills that fertilise too. if it could store multiple things in one bin, like a storage barn, except it uses one total liter count. I would think that the OP would like to see a use for it, even if it has to break real life simulation to add it in. Or would a real farmer think 'I'll use a cheaper wagon, thanks.'? It's a wagon, it can carry stuff and disgorge it. Say a sheep farmer who keeps a TMR mix wagon. Tell me of a real life farmer who uses a tool that is both expensive AND does very little to nothing for their operations. So is 'The thing is very expensive and does nothing for me'.
