Plus..., how much can you really expect in the style department in this price range  

  Sure.., 4 variations would be nice, but for the price those styles still are quite nice..., and sure ain't no Casio either  

  For under $500 you get 64 note poly, good sounds, above average styles, 16 trk sequencer, a D-Beamn.., AND MIDI JACKS TOO!  Get your hands on some instrument defs for this E-09 along with a half decent software app and you got yourself a decent sequencing keyboard too.  
If you're like me though and will probably feel the need to do some basic patch editing..., you may not be too pleased.  However, the E-09 still offers a lot in the bang for buck catergory.
 
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GEAR:  Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller).  SOFTWARE:  Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.