I've only had this monitor for a couple of months, and now am selling so I can upgrade to a 30" monitor. This is in perfect shape, no dead pixels, no smudges. Hasn't left my desk, and is turned off every night and actually most of the day when I am not at my desk. From dell.com, it costs $643 after taxes, so I'm thinking $550 shipped. It's still under warranty, by the way. I'm located in Minnesota, and have sold and bought computers on this forum. Thanks.