The Tyros is out of my price range, but I would not discount a Yamaha keyboard because of key size and feel. For me the biggest factor is the quality of the voices, especially the piano and organs. A 76 key version would also play a factor. Looking forward to playing the new Roland EXR-5. If the voices are of a better quality then the PSR550/PSR1000 then the Roland will get the sale. The Roland keyboard will most likely have full size quality keys as a bonus.

I think it will be a challenge for Roland to beat the Yamaha sweet voices, but they should be able to win in the piano and organ categories.
Starkeeper