I have a Yamaha 88-key classical key-board that I've barely used in the years that I've had it. Has a few dings on it from moving. Features bench and Floppy Disk Drive built in. Has midi and audio inputs on back. Hundreds of noises and results ... 300 Obo.
M-Audio interface barely ever utilized. Features plugins and has numerous inputs for other equipment. 50 obo.