I don't see any drawback to this idea. Lower and upper size limits still apply, but the favoured size is that one that gets applied, whenever possible. As an example, in my case, the bigger the artwork, the better, so I'd set the minimum size to "any", maximum size to "900x900" and prefered size to "900x900". Someone looking for smaller sizes would do the just the opposite and it'd work just as well.
I don't see any drawback to this idea. Lower and upper size limits still apply, but the favoured size is that one that gets applied, whenever possible. As an example, in my case, the bigger the artwork, the better, so I'd set the minimum size to "any", maximum size to "900x900" and prefered size to "900x900". Someone looking for smaller sizes would do the just the opposite and it'd work just as well.