That's a better question than the three you asked before. The answer, in my opinion, is "not necessarily."
First of all, upright do not emulate the touch of a grand really well. There is something mechanical about the touch, so they are by and large "better" than most moderately priced digitals. But the upright lacks a sense of gravity and mass that even a tiny grand piano-shaped object (I mean a baby grand under 5'8") would have. The better uprights are more expensive than the cheaper baby grands, so if space is not an issue and you have 5,000 - 7,000 us dollars for this, I would say get a Chinese baby grand.
When you get to the really good digitals (digitals never the less) you are already past the price of the mediocre uprights, as you put it. Neither one of them is a good substitute for the touch of a grand. Plus, if you are going to spend that much on a digital (I am talking in the neighborhood of 3,000 US dollars, you might as well get a baby grand.
So, my suggestion is: if you are not going ot get a baby grand, get the cheapest digital you can. A US$ 500 digital usually is better than a US$500 upright: it is in tune, the action is even (not realistic, but even), they don't go out of tune, and they are easier to move.