Ian, your right.  The OASYS 76 key is $7299.00 USD.  However, this keyboard is fully upgradable as it is completely software based.  It will never be obsolete; at least that's what KORG says.
Bill, I agree that most sounds and piano's in particular are subjective.  But I like Piano sounds on a synth in the same class as a Hammond B3 sound.  You absolutely know when they nail the original sound....you just know it!!
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Al Giordano
http://www.arrangerworld.comTyros 2, Yamaha P-250, Korg Triton Extreme 76, Roland VK8-M, DW Collectors Series Drums, Roland SPD-S.