Costway via Walmart offers its Costway 54-Key Electronic Keyboard
in Black for $19.98
with free shipping
. (Tangkula via Amazon
charges the same.) That's the lowest price we could find by $5. It features an LED display, six demo songs, seven sound effects, 16-level volume control, music recording and playback, external speaker, microphone, and vibrato, sustain, and chord functions.