This is such an idiotic strawman used by the EU fans against Movie purists. Seriously, let people like and play what they want.
If anything, purists should be fumed that Lucas left something you are passionate about to rot and stagnate, brining it back and giving us Gungans and JarJar. The EU literature, for the most part has better writing than the actual movies he developed. That should be reason enough to embrace EU. The people who created the universe when it was abandoned by its own creator who has been stuck in "approving content mode" for a very long time, I think he's forgotton how to do it himself.
The EU creators engaged a fanbase when no one else was. I would go so far as to claim that EU published material helped keep people interested in the universe. Interests wax and die if there isn't constant support.
Edited by Arthur Volts