Thanks to you all for encouraging me to sell it now. I honestly don't think I can do that yet given the bare-bones state of the singleplayer campaign. I think there would be a significant portion of negative reviews complaining about that.
Just be transparent about where you are and what your plans are.
I'd happily chuck $10 at something like this.
That said, it may be hard to switch now without garnering those negative reviews you are talking about.