You are the MOST helpful forum! And so friendly. Right now I'm cooking on a cruddy electric coil stove but a high quality GE gas is in my future (or it better be, if my husband expects much more of my cooking ;-)...Much of the cast iron I got from my mother is Favorite (either Piqua or CHF), including the chicken fryer, and a dutch oven....so those do have a sentimental appeal.
The one Wapak skillet I got, recently, impressed me mightily with its light weight and incredible smoothness, though, too.
I'll be sure and check for warping when I'm looking at the larger skillets out there. Thanks for warning me!