what are your thoughts on extended warranties? Mine is ridiculously expensive at 3,500 bucks but i figured my x5 2010 4.8i has 82,000 miles so i thought i might as well keep it the first 90 days or so just in case as its prorated and can always cancel it. I've heard a lot of bashing on service plans but I'm wondering how expensive your 4.8i repairs have been? I'm leaning towards cancelling it but am kind of on the fence in case some large component goes down....