The problem with robos is that they became required equipment in areas where others hunted. Not having one would be like going to a marsh without a call. They have become somewhat less affective, but imho they are still required when others will have them. What then happened was a powered decoy arms race. First you just saw one robo, then 2, then the ones that swim and fly, and blah blah blah. I don't like any of it, and if all artificially powered decoys were banned everyone would be back on the same foot.
Initially my objection was that it allowed people who had no idea what they were doing to kill more ducks, eliminating calling and working ducks as the most important factors. Some states that banned them cited, "The culture of duck hunting" and this is what they were refering to. Now my objection is that I'm sick of hauling all that crap around, but feel I need to. If no one had them I wouldn't want one anyway.
In areas where you're the only hunter for miles I don't think it matters. I have a few places like this, but most of my hunting is done in classic waterfowling areas that often have near by public ground and other private clubs.
Electronic calling is illegal, why can't electronic decoys be too, for much the same reasons.
Or you could just not use one and not worry about a spinning decoy that someone esle chooses to use.
But thats a lot to ask.
I'd be happy to take a condescending tone with your response, but I'm not here to pick a fight. I would hope you could show me the same respect, "but thats a lot to ask".