Since you guys do Madison trips semi-regularly, I thought this might be of interest.
This weekend Grasscola and I went to 'Geekplastiq', a new shop on the west side of Madison that sells anime & game merchandise and other nerd-related stuff. The shop is kind of small, but they did have a number of figures, ranging from the cheap trading arts blind packs to the $60+ 1/8 PVC types. I ended up buying a couple Persona 4 figures, and the prices seemed pretty fair to me.
Website is here: http://www.geekplastiq.com
I am skeptical about whether this type of shop can stay open long in Madison, so it may be worth checking out sooner rather than later.