It might even out eventually I suppose, but the very idea of buying votes with money is sickening. If instead this was some sort of system based on an even # of "pionts", like the creation of a video game character, I might get behind that. For example, a ballot with ten yes/no issues and you get 10 points to distribute how you want. You can put all ten on what you value the most, or spread them out if that's what you want, but everyone gets the same points.
My aversion is strictly for public elections though, I could see this being useful in other situations