"boy I hope Tyros 4 has best drums and more than 5 octaves, and its a seller"
If Yamaha gives the world a 76 key Tyros4 it would be an EXTREMELY HOT seller in my humble opinion!!
But I should add that it would be mostly predicated on their determination to give it MUCH BETTER Drum Kits.
76 keys in and of itself should help it sell in larger numbers overall (a 76 key version
along with a 61 key version??) but if Yamaha scrimps on the Drums again then any 76 key version will not make it the hot seller it could have been. But with Yamaha's noted "stubbornness" regarding their lack of taking and/or making radical and opportunistic market strategies, the Tyros 4 will most likely continue to be the same ol' pottage in the same old bowl with the same ol' Drums along with the same ol' "61" keys staring up at you and with the same ol' $4,000 price tag attached to it - for convenience purposes.
All the best,
Mike
PS: I didn't think the Vocal/Choir sounds were anything to write home about either in my opinion, although they do appear to be 'slightly' better than what's on the T3 currently, if that says anything to you.
Although, I can just see Yammie now charging a whopping $200.00 bucks for each one.
Hopefully they won't charge more than $40 bucks but I have my doubts.. Cha- Ching!!
Of course if they give the user a couple hundred i.e. "several hundred" or so of the voices in each pack then Yamaha could and should charge accordingly. But if they give you just a handful then charging a person an outlandish price for just a measly few would be outlandish indeed!
We'll see...