From what I've been hearing lately on this board, the warranty isn't worth the paper it's printed on, so maybe that's less of an issue than making sure your bike is maintained properly (either by yourself or the stealership's "mechanic".)
Ever since I had the privilege of watching a "qualified mechanic" at a stealership put my Yamaha's engine back together incorrectly because he was "on the wrong page" of the service manual, I've had a deep distrust of those guys.
Try to ensure that whoever works on your bike knows what they're doing.