Lego has only redone sets that needed a better build. The 2003 X-Wing and 2006 Slave one cost more and are vastly improved models from their lego precursors. I'm enjoying these licenses for their uniqueness that only lego can bring to them, with their quality. I can't wait for Batman, Avatar and Spongebob. The Lego version of the Batman Tumbler is going to be once heck of a model. I'm excited about the future of LEGO.
Oh and the ISD is a playset for kids rather than the UCS ISD.