Hi Asena,

Tyros is greek for beginner or a new begining. I guess Yamha is indicating a new breed of Keyboard.

Since the Tyros and the Genesys are probably much better keybords then the ones currently, the answer is easy: wait and see
Plus often you get a good deal on the older model when a new KB comes on the market.

The Genesys will be out soon. The Tyros probably by the end of the year or early next year ( if Yamaha is doing what they have been doing )

Regarding the blank display, it is really no problem, since nothing else happens and you can finish your song. You just have to pull up another screen, like a voice or the mixing console to restore the screen.
Anoying maybe yes, but no problem during a song.

Hope this helps.

Eric