Hello. I am a guitar player who is looking to learn the keyboard as well. I am trying to find my first keyboard. I am trying to decide between an older Yamaha PSR-500 for $30, and a Casio CTK-720 for $50. I honestly like the sound of the Yamaha better. The Casio sounds a bit too electronic in my opinion. I will eventually be using the keyboard for recording and such (once I learn how to play it). I'm just wondering what everyone's opinions are between the two. I don't know much about this stuff. Lol.