I agree with abacus on his points mentioned, in fact the following morning after the previous nights concert I discussed with Brett his performance on the PA1X about sequencing and he agreed he had played to a sequence he had previously played and recorded into the Korg himself. Note....this was not a midi file he was playing to.
Glyn Madden (Yamaha) does the same thing. Glyn records his own percussion track amongst other tracks into every sequence to obtain the right feeling for the piece being play.
The korg PAX1 was for me equally as good (possibly better) than the T2 not forgetting the excellent G70 at Caister.
It just happens that Yamaha have money & staff to throw behind a new product launch.
We all pay our money and make our own choices for better or worse.