In my humble opinion Pioneer can (and should) improve products as any other company does. When you buy a car you should expect a restyle after 2 years, after 4 years a totally new model, and these are chance to see improvements e issues fix. The point for me is another one. if you're not a mobile dj or a dj working in top clubs, probably you won't be able to work with new hardware for months (sometimes years). That means you can have your 2000NXS at home and enjoy the new features but no hope to take advantage of them when you go out for playing, unless you bring your own cd players with you.