If you want to buy 1 cookie sheet and be done with it for life get these!  These are the same ones that you see in commercial settings.  Even though they are not non-stick they clean up wonderfully.  We roast beats on them constantly and they clean right up easily afterwards with an abrasive sponge.  I generally stay away from non-stick as if tends to flake off over time and I'm skeptical that is good for you.  These are a great alternative!