With technology changing faster than ever, why wait longer to release it. I can't wait to get my Tyros4. Many disagree here, but I think all the improvements over Tyros3 (I have one.) it's the right time for Yamaha to release the new model. If this starts a new 2 year pattern, then all the better. Those who aren't interested in Tyros4 might only have to wait 2 more years for the next offering. -charley