Go the Casio. It is the new 5 s unit it is white it sounds great and has good decay I tested it the sample rings for over 25 seconds with holding down sustain ped this is a good way to find out how much depth the sample has Best vale and sound in it class by far I had Rd series from roland this will blow it away And good other synth sounds as well and it works as a controller as well. You won't be disappointed with this unit. If I was in market for stage piano this is the one I buy all the way list 999.00
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Genos, PSR S970, Fender Tele Amercian Deluxe Cherry sunburst , Cubase Pro 8 ,Yamaha A3M Acoustric ,Taylor 814, Ibenez Artcore Custom Tascam DP 32 Yamaha DXR 10, QSC K-12, K 12 Sub K 8 Sinn 945
2 Fender Expo line units .