I'm curious how exactly you managed to destroy pans. I've never destroyed a pan in my life, and take no particular precautions - is this a common thing? Is this more common with non-stick stuff or something?
The non-stick ones especially, but even plain metal pans will warp if they get hot enough. And then they don't sit flat on the burner, which might not matter on a gas stove, but contact with an electric burner is pretty important.