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Has John Mayer's watch partnership caused prices for vintage Casio gear to rise?
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Amazon.com: Casio Casiotone, 61-Key Portable Keyboard with USB (CT-S300) and M-Audio SP-2 - Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More : Musical Instruments
Best Buy: Casio MIDI Keyboard XW-G1
Buy Casio Casiotone CT-S1000V Portable Keyboard | Sam Ash Music