I have no idea. I have cookware from Walmart and it is just fine. I suppose the expensive kind is better quality and will last for generations.
Silicon bakeware is great...Bit I'm not sure what else? The article in my sources seems to have some good suggestions?
Cookware is tools, so you buy the best you can afford, because it's an investment. What makes the difference is the construction. Quality construction can be had a variety of different prices because cookware marketing is a lot of hype. What you want...