I have one. I use it. We have designated trails here in Wisconsin. We Can't ride them off road on public hunting grounds, but there are times that I wish we could. I use mine for basically getting from point "A" to point "B". I'm not a recreational rider for the most part, but I love using it to go ice fishing. It makes dragging a shanty and all your gear a real treat. I wish they would allow people to use them to drag out deer or bear, but I'm not an advocate of allowing people to ride them over the ground where there is no trail, but I also think we could support more trails in this state. There are a small number of people who choose to take the ATV off the main trail, which eventually pisses off someone.
The best advantage to having an ATV is when it snows. It actually makes plowing enjoyable, and I know the neighbors appreciate the fact that I don't mind plowing their driveway for them.