Just came across this nifty bit of info, thought I'd share it with my fellow Wisconsinites and those who planned on visiting. A tiered system of fee hikes, depending on various factors----of Wisconsin State Parks, starting tomorrow, 28 July 2015:
http://dnr.wi.gov/topic/parks/camping/campfeesnew.html
Luckily, our favorite, more rural or rustic parks are in the middle and lower tiers, and we don't use electric sites.