The Bible is under attack from all sides. Satan knows it tells the truth about him, the victory that Jesus had at the cross, and what will happen in the future. As such, Satan has and still is making every attempt to destroy the Word of God. What better way to do this, than to change the meaning of the Bible over time with different bible versions; each version as it comes along claiming it is the truth and the most accurate of all the versions up until that point.
The line must be drawn where we say, "If the King James Bible was good enough for 400 years, then it is still good enough for me." For by it men and women have been saved and the knowledge of God imparted unto them. When new bible versions come along, they always take something away that is never replaced, only to be lost forever. If you believe that the Bible is the inspired Word of God, then stand up for it. Take a stand and speak out against these new bible versions. An objection often raised against the "King James Only Crowd" is that people learn something from the other (modern) versions, too, and that some even get saved: but I dare say that this occurs in spite of these errant versions, not because of them!
The Authorized Version of 1611, or, in other words, the King James Bible, stands alone in its uniqueness, integrity, and fidelity to the truthfulness of God’s Word. Among reasons why this writer holds this conviction is because of the great harm done not only to the Word of God, but the detriment wrought in the local church in its public worship, and, of course, because of the confusion created in countless group and individual Bible studies. After all, it could be said: How do you think your professor would think or feel if all of his students used different textbooks in his class?! In our case, God is our Great Professor! He alone is the one true God, who has walked among us upon this earth and left us the living and enduring legacy of His Word and His Spirit. Until He comes, Amen.
 

I disagree. The KJV is old, based on old understandings of Hebrew and Greek which were incorrect in some areas.

New translations are not simply done on top of each other, but each is done by going back to the hebrew and greek manuscripts. Because of this, it is not simply a case of each translation slowly removing or changing things based on the previous translation.

Each translation should be judged on it's own merits and not simply because a highly controlled church managed to keep one version as authoritative for hundreds of years.

Yet even in that version, there are clearly mistakes that need correcting and it's language is no longer current. The whole point of a translation is to translate a document in another language to the current language.