Get them. Someone slashed one of my tires two nights ago when I was downtown for a gig... I wasn't too mad, those things happen. Well I got a new tire yesterday and they asked me if I wanted to get a road wear coverage warranty for like $20. I didn't think I'd need it... Fast-forward to today. I was driving around, minding my own business and I didn't notice a broken piece of curb hanging out in the road. It caught the same tire I JUST BOUGHT YESTERDAY and fatally wounded it. Needless to say, I'm having to replace it again... this time I am getting the road wear warranty for sure.