The US-61/WI-129 fiasco is really a microcosm of Wisconsin's highways. There must be somone with a lot of money, or a lot of people with a lot of combined money, who is/are set on keeping US-61 where it is. Really, it's not fooling anyone. Google Maps and other GPSes will still tell you to use WI-129. And anyways I suspect that the majority of Lancaster's thru traffic is using WI-35/WI-81 to the west into the community, to US-61/WI-35/WI-81 out of the community to the south, or vice versa, in which case WI-129 would not be relevant at all.