Sadly only a few complained and the 2004 set was a huge success, and pretty much the same thing happened with the blu rays.
Just owning the films regardless of what was changed is what average joe's cared about.
The 2006 set with the non anamorphic bonus dvd was a non event really and did not sell as well as the 2004 set. Or the Blu rays.
The claims are that it sold poorly because the original was not restored and was from a 1993 master, Lucasfilm seems to think it sold poorly because no one is interested in the originals.