Lets face it if they get run over their especially done for if the case flexes. And they all will with enough weight. The one I have is a heavy son of a gun. If I ever replace it no matter what it is it will have wheels. Mine is full size for two scoped rifles. I have not seen the ones you guys are talking about but either way the extra insurance is a good buy. NorthWest charges $50 for a Maximum of $5,000 per piece of luggage. I worked for the airlines for several years. Usually the worst thing that happens next to theft is when the luggage falls off the pug train......Then of course it might get run over