I can't help but remember the day my Tyros 4 arrived. It was about 3PM. At 4AM I was still playing with it and beginning to wish I had not bought it. I currently owned a Tyros 3 and simply was not impressed with my first 10 or so hours playing with the Tyros 4. After 3 days I was ready to put it on Ebay. But, as I continued to use it and dig into the T4 it became very clear how much more there was to it than my Tyros 3. I suspect the same will be true now of the Tyros 5. We shall see. One thing is for sure. Those upgrading from a T3 or T2 have a big shock and pleasant surprise coming.
Deane