I ask this because with the introduction of the Roland RD2000 and its full modeling piano engine, how can Yamaha claim that the CP4 is still their best? The lack of any other resonance besides the "reverb-y" damper resonance DSP and the omission of the hammer stiffness parameter from the CP1 and CP5, doesn't seem to match what Roland, Kawai, or Nord provide users i their digital pianos. I had hoped Yamaha would update the CP4's OS to support their VRM (virtual resonance modeling) DSP block, but nothing has been introduced. I'm thinking that Yamaha made their money back with the CP4 for the not so well received CP5 and is content with the acclaim that users give it. I mean really guys, the CP4 has a decent sound in the acoustic piano department, but it lacks depth and complexity that I figure the world's leading manufacturer of acoustics pianos would be sure to include in their digital pianos. I understand no digital piano can match a world class acoustic piano, but at least try to include (and more) what your competitors include in their instruments. Since I know Yamaha will not and can not tell their future product plans, I ask if any forum mates have any input on the subject?