Those all have two issues: MUCH higher cost (I got mine for $50) and they still don't offer refined power/temp controls. It's just in large steps. I did find one that uses a reflective thermostat to set the EXACT temperature you want and they said it's accurate to within 1.8 degrees F, but it costs over $1,000 for one burner. My current setup is fine, but if I was going to spend that kind of money on a new stove, it would be for a gas convection oven, not just one stovetop burner.