Lego is awesome as they are always improving their designs. My first mini building set from 2003 vs the new 2011 mini X-wing fighter.
Gotta say the new one is totally improved. Its larger, sturdier, and has more color. The first one was packaged with a Tie Advanced, so it had less pieces. It wasn't too bad for the time, its wing guns are a little simplistic. The new one has better thruster lights in the back.
The new X-Foils are more menacing in attack position then before too.
Still they both are fun, and in 8 years, when the next model is out, I will get it and compare again.