My wife purchased a float tube for me for our last western trout fishing excursion to Henry's Lake State Park outside of Island Park, ID. Got home and thought, "I wounder when I would use this thing again?" I had a total blast and was surprised by how easy it was to maneuver and hold steady in a desired position even in a steady wind.
Wisconsin is Also home to over 200 spring ponds which are almost exculsively managed for native brook trout, but some also have rainbow and brown trout which have migrated up from outlet creeks and rivers. For the larger spring ponds a float tube is a great way to cover a lot of water effeicently. Often times these spring ponds are surrounded by bogs so shore fishing isn't the best. Slowly and gently fish these spring ponds in a float tube and you will cover much more water and catch a lot more fish.
* I use the pictured above float tube by trout unlimited called the kennebec with thruster fins.