I am a bit surprised that they didn't re-do the tauntaun scenes for the SE. They could have even made a CG Luke, at least for the parts where it's running or at a distance. Not sure I'd wanna see a CG tauntaun circa 1997 or even 2004, though! The way it looks never bothered me in the least, and knowing how much work goes into stop-motion animation made me appreciate it even more.