Remember that if you buy a controller with no sounds, you have a controller with no sounds. If you buy an actual synth, you can use it as a controller with the volume off so you don't play the onboard sounds. That way you have both your controller and a synth. I have a practice keyboard that I use in my downstairs where I have a "secondary" music area so if I get an idea I can pop it into a DAW down there rather than hike up those steps and power everything up for just 10 minutes to plunk down a skeleton of a song. Hit some pawn shops! Now I suggest strongly against the "toy level" things that Yamaha makes with the little speakers onboard. They are usually not all that durable and the sounds on them are tinny and cheap.